n = int(input())
factors = set()

for i in range(1, int(n**0.5) + 1):
    if n % i == 0:
        factors.add(i)
        factors.add(n // i)

ans = 0
for x in factors:
    y = n // x
    if (x & y) == x:
        cnt = bin(x).count('1')
        ans += (1 << (cnt - 1)) if cnt > 0 else 0

print(ans)