input: Write a function to print all divisors of a given number. The function should take an integer input and return a string of divisors separated by commas. If the input number is zero, return "All numbers are divisors of zero".
  assert get_divisors(12) == "1, 2, 3, 4, 6, 12"
  assert get_divisors(0) == "All numbers are divisors of zero"
  assert get_divisors(1) == "1"
  assert get_divisors(17) == "1, 17"
  assert get_divisors(15) == "1, 3, 5, 15"
output: def get_divisors(n):
      if n == 0:
          return "All numbers are divisors of zero"
      divisors = [str(i) for i in range(1, abs(n) + 1) if n % i == 0]
      return ", ".join(divisors)