28187289

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2339}}^1$

素因数の和:2461

約数の個数: 24

約数和(自身を含む): 44291520

約数和(自身を除く): 16104231

約数列:

[1, 3, 9, 13, 39, 103, 117, 309, 927, 1339, 2339, 4017, 7017, 12051, 21051, 30407, 91221, 240917, 273663, 722751, 2168253, 3131921, 9395763, 28187289]

約数ペア:

[(1, 28187289), (3, 9395763), (9, 3131921), (13, 2168253), (39, 722751), (103, 273663), (117, 240917), (309, 91221), (927, 30407), (1339, 21051), (2339, 12051), (4017, 7017)]