30721221

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:662

約数の個数: 32

約数和(自身を含む): 47646720

約数和(自身を除く): 16925499

約数列:

[1, 3, 9, 27, 43, 47, 129, 141, 387, 423, 563, 1161, 1269, 1689, 2021, 5067, 6063, 15201, 18189, 24209, 26461, 54567, 72627, 79383, 217881, 238149, 653643, 714447, 1137823, 3413469, 10240407, 30721221]

約数ペア:

[(1, 30721221), (3, 10240407), (9, 3413469), (27, 1137823), (43, 714447), (47, 653643), (129, 238149), (141, 217881), (387, 79383), (423, 72627), (563, 54567), (1161, 26461), (1269, 24209), (1689, 18189), (2021, 15201), (5067, 6063)]