28890189

素因数分解:

$3^4\times {\mathrm{97}}^1\times {\mathrm{3677}}^1$

素因数の和:3786

約数の個数: 20

約数和(自身を含む): 43613724

約数和(自身を除く): 14723535

約数列:

[1, 3, 9, 27, 81, 97, 291, 873, 2619, 3677, 7857, 11031, 33093, 99279, 297837, 356669, 1070007, 3210021, 9630063, 28890189]

約数ペア:

[(1, 28890189), (3, 9630063), (9, 3210021), (27, 1070007), (81, 356669), (97, 297837), (291, 99279), (873, 33093), (2619, 11031), (3677, 7857)]