18215703

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:460

約数の個数: 36

約数和(自身を含む): 29669640

約数和(自身を除く): 11453937

約数列:

[1, 3, 9, 11, 33, 43, 99, 121, 129, 363, 387, 389, 473, 1089, 1167, 1419, 3501, 4257, 4279, 5203, 12837, 15609, 16727, 38511, 46827, 47069, 50181, 141207, 150543, 183997, 423621, 551991, 1655973, 2023967, 6071901, 18215703]

約数ペア:

[(1, 18215703), (3, 6071901), (9, 2023967), (11, 1655973), (33, 551991), (43, 423621), (99, 183997), (121, 150543), (129, 141207), (363, 50181), (387, 47069), (389, 46827), (473, 38511), (1089, 16727), (1167, 15609), (1419, 12837), (3501, 5203), (4257, 4279)]