388264779

素因数分解:

$3^3\times 7^2\times {\mathrm{293473}}^1$

素因数の和:293496

約数の個数: 24

約数和(自身を含む): 669120720

約数和(自身を除く): 280855941

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 293473, 880419, 2054311, 2641257, 6162933, 7923771, 14380177, 18488799, 43140531, 55466397, 129421593, 388264779]

約数ペア:

[(1, 388264779), (3, 129421593), (7, 55466397), (9, 43140531), (21, 18488799), (27, 14380177), (49, 7923771), (63, 6162933), (147, 2641257), (189, 2054311), (441, 880419), (1323, 293473)]