398455631

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{1097}}^1\times {\mathrm{2731}}^1$

素因数の和:3854

約数の個数: 16

約数和(自身を含む): 479957760

約数和(自身を除く): 81502129

約数列:

[1, 7, 19, 133, 1097, 2731, 7679, 19117, 20843, 51889, 145901, 363223, 2995907, 20971349, 56922233, 398455631]

約数ペア:

[(1, 398455631), (7, 56922233), (19, 20971349), (133, 2995907), (1097, 363223), (2731, 145901), (7679, 51889), (19117, 20843)]