21380876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{6151}}^1$

素因数の和:6245

約数の個数: 24

約数和(自身を含む): 41341440

約数和(自身を除く): 19960564

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 6151, 12302, 24604, 67661, 135322, 270644, 485929, 971858, 1943716, 5345219, 10690438, 21380876]

約数ペア:

[(1, 21380876), (2, 10690438), (4, 5345219), (11, 1943716), (22, 971858), (44, 485929), (79, 270644), (158, 135322), (316, 67661), (869, 24604), (1738, 12302), (3476, 6151)]