28137681

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21863}}^1$

素因数の和:21893

約数の個数: 24

約数和(自身を含む): 47750976

約数和(自身を除く): 19613295

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 21863, 65589, 196767, 240493, 284219, 721479, 852657, 2164437, 2557971, 3126409, 9379227, 28137681]

約数ペア:

[(1, 28137681), (3, 9379227), (9, 3126409), (11, 2557971), (13, 2164437), (33, 852657), (39, 721479), (99, 284219), (117, 240493), (143, 196767), (429, 65589), (1287, 21863)]