(number)
A perfect number equals the sum of its positive divisors.

    :param number: int a positive integer
    :return: str the classification of the input integer
A perfect number equals the sum of its positive divisors.
A perfect number equals the sum of its positive divisors .
def classify(number):
    """ A perfect number equals the sum of its positive divisors.

    :param number: int a positive integer
    :return: str the classification of the input integer
    """
    pass
def classify ( number ) : pass