21226760

素因数分解:

$2^3\times 5^1\times {\mathrm{530669}}^1$

素因数の和:530680

約数の個数: 16

約数和(自身を含む): 47760300

約数和(自身を除く): 26533540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 530669, 1061338, 2122676, 2653345, 4245352, 5306690, 10613380, 21226760]

約数ペア:

[(1, 21226760), (2, 10613380), (4, 5306690), (5, 4245352), (8, 2653345), (10, 2122676), (20, 1061338), (40, 530669)]