def factorECM(N):
  """
  TESTS::
    sage: factorECM(100070000190133)
    [10007, 10000000019]

    sage: factorECM(100181800505809010267)
    [5009090003, 20000000089]

    sage: factorECM(6986389896254914969335451)
    [833489857, 8382093480298843]
  """
  # **** Place your code here *****