18087291

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{269}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 27181440

約数和(自身を除く): 9094149

約数列:

[1, 3, 9, 31, 93, 241, 269, 279, 723, 807, 2169, 2421, 7471, 8339, 22413, 25017, 64829, 67239, 75051, 194487, 583461, 2009699, 6029097, 18087291]

約数ペア:

[(1, 18087291), (3, 6029097), (9, 2009699), (31, 583461), (93, 194487), (241, 75051), (269, 67239), (279, 64829), (723, 25017), (807, 22413), (2169, 8339), (2421, 7471)]