简单while-while

n = int(input())
count = 0 
if n % 2 == 0:
    count += 1 
    while n % 2 == 0:
        n //= 2 
i = 3 
while i * i <= n and n > 1:
    if n % i == 0:
        count += 1 
        while n % i == 0:
            n //= i 
    i += 2 
if n > 1:
    count += 1 
print(count)