256996917

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{10987}}^1$

素因数の和:11129

約数の個数: 24

約数和(自身を含む): 390821184

約数和(自身を除く): 133824267

約数列:

[1, 3, 9, 23, 69, 113, 207, 339, 1017, 2599, 7797, 10987, 23391, 32961, 98883, 252701, 758103, 1241531, 2274309, 3724593, 11173779, 28555213, 85665639, 256996917]

約数ペア:

[(1, 256996917), (3, 85665639), (9, 28555213), (23, 11173779), (69, 3724593), (113, 2274309), (207, 1241531), (339, 758103), (1017, 252701), (2599, 98883), (7797, 32961), (10987, 23391)]