N除数的几何平均值的整数部分

给定一个整数N ，任务是找到N个除数的几何平均值的整数部分。几何均值是一种特殊的平均值，其中我们将数字相乘，然后取平方根(对于两个数字)，立方根(对于三个数字)，依此类推。

Examples: 
Input: N = 4 
Output: 2 
Divisors of 4 are 1, 2 and 4 
Geometric mean = (1 * 2 * 4)^(1/3) = 8^(1/3) = 2
Input: N = 16 
Output: 8 
Divisors of 16 are 1, 2, 4, 8 and 16 
Geometric mean = (1 * 2 * 4 * 8 * 16)^(1/5) = 1024^(1/5) = 4 
 

方法：可以观察到，将形成一个N值为1，1，1，2，2，2，2，2，3，3，3，3，3，3，3，…的级数。其^第N术语是⌊√n⌋。
下面是上述方法的实现：

C++

// C++ implementation of the approach
#include 
using namespace std;
 
// Function to return the integer
// part of the geometric mean
// of the divisors of n
int geometricMean(int n)
{
    return sqrt(n);
}
 
// Driver code
int main()
{
    int n = 16;
 
    cout << geometricMean(n);
 
    return 0;
}

Java

// Java implementation of the approach
class GFG
{
 
// Function to return the integer
// part of the geometric mean
// of the divisors of n
static int geometricMean(int n)
{
    return (int) Math.sqrt(n);
}
 
// Driver code
public static void main(String []args)
{
    int n = 16;
    System.out.println(geometricMean(n));
}
}
 
// This code is contributed by Rajput-Ji

Python3

# Python3 implementation of the approach
from math import sqrt
 
# Function to return the integer
# part of the geometric mean
# of the divisors of n
def geometricMean(n) :
 
    return int(sqrt(n));
 
# Driver code
if __name__ == "__main__" :
 
    n = 16;
 
    print(geometricMean(n));
 
# This code is contributed by AnkitRai01

C#

// C# implementation of the approach
using System;   
 
class GFG
{
  
// Function to return the integer
// part of the geometric mean
// of the divisors of n
static int geometricMean(int n)
{
    return (int) Math.Sqrt(n);
}
  
// Driver code
public static void Main(String []args)
{
    int n = 16;
    Console.WriteLine(geometricMean(n));
}
}
 
// This code is contributed by PrinciRaj1992

Javascript

 
// Javascript implementation of the approach
 
// Function to return the integer
// part of the geometric mean
// of the divisors of n
function geometricMean(n)
{
    return Math.sqrt(n);
}
 
// Driver code
var n = 16;
document.write(geometricMean(n));
 

输出：

4