81175311

素因数分解:

$3^3\times 7^2\times {\mathrm{61357}}^1$

素因数の和:61380

約数の個数: 24

約数和(自身を含む): 139896240

約数和(自身を除く): 58720929

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 61357, 184071, 429499, 552213, 1288497, 1656639, 3006493, 3865491, 9019479, 11596473, 27058437, 81175311]

約数ペア:

[(1, 81175311), (3, 27058437), (7, 11596473), (9, 9019479), (21, 3865491), (27, 3006493), (49, 1656639), (63, 1288497), (147, 552213), (189, 429499), (441, 184071), (1323, 61357)]