from math import gcd


def factorization(n):
    arr = dict()
    temp = n
    for i in range(2, int(-(-n ** 0.5 // 1)) + 1):
        if temp % i == 0:
            cnt = 0
            while temp % i == 0:
                cnt += 1
                temp //= i
            arr[i] = cnt

    if temp != 1:
        arr[temp] = 1

    if not arr and n != 1:
        arr[n] = 1

    return arr


N = int(input())

M = gcd(N, N * (N + 1) // 2)
ans = 1
for k, v in factorization(M).items():
    ans *= (k ** (v + 1) - 1) // (k - 1)
print(ans)