#include <cstdio>
int main()
{
	int number;
	while(scanf("%d",&number)!=EOF)
	{
		int ans=0,sum=0;
		for(int i=1;(i+2)*(i+1)<=2*number;++i)
		{
			sum+=i;
			if((number-sum)%(i+1)==0)++ans;
		}
		printf("%d\n",ans+1);
	}
	return 0;
}