21280954

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{2251}}^1$

素因数の和:2445

約数の個数: 16

約数和(自身を含む): 33239520

約数和(自身を除く): 11958566

約数列:

[1, 2, 29, 58, 163, 326, 2251, 4502, 4727, 9454, 65279, 130558, 366913, 733826, 10640477, 21280954]

約数ペア:

[(1, 21280954), (2, 10640477), (29, 733826), (58, 366913), (163, 130558), (326, 65279), (2251, 9454), (4502, 4727)]