#include<stdio.h>

int main()
{
    int a;
    while(scanf("%d", &a)==1)
    {
        int i,count=0;
        if(a%2!=0)
        {
            count++;
            for(i=1; i<=a/2; i+=2)
                if(a%i==0)
                    count++;
        }
        if(a%2==0)
        {
            for(i=1; i<=a/2; i+=2)
                if(a%i==0)
                    count++;
        }
        printf("%d\n", count);

    }
    return 0;
}