#include<stdio.h>
#include<math.h>
void main () {
int i,j,n,m=0;
scanf("%d",&n);
if(n==1||n==2) {j=1; printf("%d\n",j); goto end;}
else 
for(i=2;i<n;i++)
if(!(n%i)&&n%i%2&&n/i/2<i&&i+n/i/2<n)
m=m+1;
if(n%2) printf("%d\n",m+2);
else  printf("%d\n",m+1);
end:;
}