238466781

素因数分解:

$3^3\times 7^2\times {\mathrm{180247}}^1$

素因数の和:180270

約数の個数: 24

約数和(自身を含む): 410965440

約数和(自身を除く): 172498659

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 180247, 540741, 1261729, 1622223, 3785187, 4866669, 8832103, 11355561, 26496309, 34066683, 79488927, 238466781]

約数ペア:

[(1, 238466781), (3, 79488927), (7, 34066683), (9, 26496309), (21, 11355561), (27, 8832103), (49, 4866669), (63, 3785187), (147, 1622223), (189, 1261729), (441, 540741), (1323, 180247)]