28443681

素因数分解:

$3^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1279}}^1$

素因数の和:1645

約数の個数: 24

約数和(自身を含む): 47124480

約数和(自身を除く): 18680799

約数列:

[1, 3, 7, 9, 21, 63, 353, 1059, 1279, 2471, 3177, 3837, 7413, 8953, 11511, 22239, 26859, 80577, 451487, 1354461, 3160409, 4063383, 9481227, 28443681]

約数ペア:

[(1, 28443681), (3, 9481227), (7, 4063383), (9, 3160409), (21, 1354461), (63, 451487), (353, 80577), (1059, 26859), (1279, 22239), (2471, 11511), (3177, 8953), (3837, 7413)]