1255221

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 2046720

約数和(自身を除く): 791499

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 279, 341, 409, 1023, 1227, 3069, 3681, 4499, 12679, 13497, 38037, 40491, 114111, 139469, 418407, 1255221]

約数ペア:

[(1, 1255221), (3, 418407), (9, 139469), (11, 114111), (31, 40491), (33, 38037), (93, 13497), (99, 12679), (279, 4499), (341, 3681), (409, 3069), (1023, 1227)]