21910520

素因数分解:

$2^3\times 5^1\times {\mathrm{547763}}^1$

素因数の和:547774

約数の個数: 16

約数和(自身を含む): 49298760

約数和(自身を除く): 27388240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547763, 1095526, 2191052, 2738815, 4382104, 5477630, 10955260, 21910520]

約数ペア:

[(1, 21910520), (2, 10955260), (4, 5477630), (5, 4382104), (8, 2738815), (10, 2191052), (20, 1095526), (40, 547763)]