21027906

素因数分解:

$2^1\times 3^2\times {\mathrm{653}}^1\times {\mathrm{1789}}^1$

素因数の和:2450

約数の個数: 24

約数和(自身を含む): 45655740

約数和(自身を除く): 24627834

約数列:

[1, 2, 3, 6, 9, 18, 653, 1306, 1789, 1959, 3578, 3918, 5367, 5877, 10734, 11754, 16101, 32202, 1168217, 2336434, 3504651, 7009302, 10513953, 21027906]

約数ペア:

[(1, 21027906), (2, 10513953), (3, 7009302), (6, 3504651), (9, 2336434), (18, 1168217), (653, 32202), (1306, 16101), (1789, 11754), (1959, 10734), (3578, 5877), (3918, 5367)]