28874889

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1289}}^1$

素因数の和:1445

約数の個数: 24

約数和(自身を含む): 44272800

約数和(自身を除く): 15397911

約数列:

[1, 3, 9, 19, 57, 131, 171, 393, 1179, 1289, 2489, 3867, 7467, 11601, 22401, 24491, 73473, 168859, 220419, 506577, 1519731, 3208321, 9624963, 28874889]

約数ペア:

[(1, 28874889), (3, 9624963), (9, 3208321), (19, 1519731), (57, 506577), (131, 220419), (171, 168859), (393, 73473), (1179, 24491), (1289, 22401), (2489, 11601), (3867, 7467)]