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math.NT2018
Primitive weird numbers having more than three distinct prime factors
Gianluca Amato, Maximilian F. Hasler, Giuseppe Melfi +1
In this paper we study some structure properties of primitive weird numbers in terms of their factorization. We give sufficient conditions to ensure that a positive integer is weir…
math.NT2018
Primitive abundant and weird numbers with many prime factors
Gianluca Amato, Maximilian F. Hasler, Giuseppe Melfi +1
We give an algorithm to enumerate all primitive abundant numbers (briefly, PANs) with a fixed (the number of prime factors counted with their multiplicity), and explicitly find…