28201491

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1987}}^1$

素因数の和:2095

約数の個数: 24

約数和(自身を含む): 43417920

約数和(自身を除く): 15216429

約数列:

[1, 3, 9, 19, 57, 83, 171, 249, 747, 1577, 1987, 4731, 5961, 14193, 17883, 37753, 113259, 164921, 339777, 494763, 1484289, 3133499, 9400497, 28201491]

約数ペア:

[(1, 28201491), (3, 9400497), (9, 3133499), (19, 1484289), (57, 494763), (83, 339777), (171, 164921), (249, 113259), (747, 37753), (1577, 17883), (1987, 14193), (4731, 5961)]