21421860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{357031}}^1$

素因数の和:357043

約数の個数: 24

約数和(自身を含む): 59981376

約数和(自身を除く): 38559516

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 357031, 714062, 1071093, 1428124, 1785155, 2142186, 3570310, 4284372, 5355465, 7140620, 10710930, 21421860]

約数ペア:

[(1, 21421860), (2, 10710930), (3, 7140620), (4, 5355465), (5, 4284372), (6, 3570310), (10, 2142186), (12, 1785155), (15, 1428124), (20, 1071093), (30, 714062), (60, 357031)]