def prime_factorize(n):
    result = []
    if n % 2 == 0:
        t = 0
        while n % 2 == 0:
            n //= 2
            t += 1
        result.append((2, t))
    for i in range(3, int(n ** 0.5) + 1, 2):
        if n % i != 0:
            continue
        t = 0
        while n % i == 0:
            n //= i
            t += 1
        result.append((i, t))
        if n == 1:
            break
    if n != 1:
        result.append((n, 1))
    return result


N = int(input())

a = N
while a % 2 == 0:
    a //= 2

result = 1
for p, e in prime_factorize(a):
    result *= e + 1
result *= 2
print(result)
