21528556

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{26513}}^1$

素因数の和:26553

約数の個数: 24

約数和(自身を含む): 44543520

約数和(自身を除く): 23014964

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 26513, 53026, 106052, 185591, 371182, 742364, 768877, 1537754, 3075508, 5382139, 10764278, 21528556]

約数ペア:

[(1, 21528556), (2, 10764278), (4, 5382139), (7, 3075508), (14, 1537754), (28, 768877), (29, 742364), (58, 371182), (116, 185591), (203, 106052), (406, 53026), (812, 26513)]