21138722

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{1973}}^1$

素因数の和:2473

約数の個数: 16

約数和(自身を含む): 34679232

約数和(自身を除く): 13540510

約数列:

[1, 2, 11, 22, 487, 974, 1973, 3946, 5357, 10714, 21703, 43406, 960851, 1921702, 10569361, 21138722]

約数ペア:

[(1, 21138722), (2, 10569361), (11, 1921702), (22, 960851), (487, 43406), (974, 21703), (1973, 10714), (3946, 5357)]