21349168

素因数分解:

$2^4\times {\mathrm{947}}^1\times {\mathrm{1409}}^1$

素因数の和:2364

約数の個数: 20

約数和(自身を含む): 41437080

約数和(自身を除く): 20087912

約数列:

[1, 2, 4, 8, 16, 947, 1409, 1894, 2818, 3788, 5636, 7576, 11272, 15152, 22544, 1334323, 2668646, 5337292, 10674584, 21349168]

約数ペア:

[(1, 21349168), (2, 10674584), (4, 5337292), (8, 2668646), (16, 1334323), (947, 22544), (1409, 15152), (1894, 11272), (2818, 7576), (3788, 5636)]