import math
N = int(input())
count = 0
ans = list()
for i in range(1, math.floor(math.sqrt(N))+1):
	q = N/i
	if q.is_integer(): #割り切れるか判定
		ans.append(i)
		ans.append(int(q))
for i in range(0, len(ans), 2):
	if str(ans[i]) + str(ans[i+1]) == str(ans[i+1]) + str(ans[i]):
		count += 1
	else:
		count += 2
print(count)