#include <iostream>
#include <cmath>
#include <algorithm>

using namespace std;


void nr_div_imp(int n, int &div)
{
    div = 0;
    int d;

    if(n % 2 == 1)
    {
        div++;
    }

    for(d = 3; d * d < n; d += 2)
    {
        if(n % d == 0)
        {
            div++;
        }

        if(n  % (n / d) == 0 && (n / d % 2 == 1))
        {
            div++;
        }
    }

    if(d % 2 == 1 && d * d == n)
    {
        div++;
    }


    return;
}