A003530 Divisors of 2^21 - 1.
1, 7, 49, 127, 337, 889, 2359, 6223, 16513, 42799, 299593, 2097151
Offset: 1
Crossrefs
Row n = 21 of A361438.
Programs
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Mathematica
Divisors[2^21 - 1] (* Paolo Xausa, Jul 02 2024 *)
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PARI
divisors(2^21-1) \\ Charles R Greathouse IV, Jun 21 2017