C :

#include<stdio.h>

int main()
{
	int c,n,i,j,k,mini,s;
	scanf("%d",&c);
	while(c--)
	{
		scanf("%d",&n);
		for(mini=100000000,i=1;i<=n;i++)
			for(j=i;j*i<=n;j++)
				if(n%(j*i)==0)
				{
					k=n/j/i;
					s=(i*j+i*k+j*k)*2;
					if(s<mini)
						mini=s;
				}
		printf("%d\n",mini);
	}
	return 0;
}

C++ :

#include<stdio.h>

int main()
{
	int c,n,i,j,k,mini,s;
	scanf("%d",&c);
	while(c--)
	{
		scanf("%d",&n);
		for(mini=100000000,i=1;i<=n;i++)
			for(j=i;j*i<=n;j++)
				if(n%(j*i)==0)
				{
					k=n/j/i;
					s=(i*j+i*k+j*k)*2;
					if(s<mini)
						mini=s;
				}
		printf("%d\n",mini);
	}
	return 0;
}

Java :

import java.util.*;

public class Main{
    public static void main(String[] args){
    Scanner in = new Scanner(System.in);
    int C = in.nextInt();
    for(int n = 1;n<=C;n++){
        int N = in.nextInt();
        int a = 1, b = N;
        int result = 2147483647;
        for(int i = 1;i<=N;i++)
        {
            for(int j = i;j*i<=N;j++)
            {
                if(N%(i*j)==0)
                {
                    int k = N/i/j;
                    int area = (i*j+i*k+j*k)*2;
                    if(area<result)
                    result = area;
                }
            }
        }
        if(N==0) result = 0;
        System.out.println(result);
    }
}
}