21600660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{691}}^1$

素因数の和:1224

約数の個数: 48

約数和(自身を含む): 60685632

約数和(自身を除く): 39084972

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 521, 691, 1042, 1382, 1563, 2073, 2084, 2605, 2764, 3126, 3455, 4146, 5210, 6252, 6910, 7815, 8292, 10365, 10420, 13820, 15630, 20730, 31260, 41460, 360011, 720022, 1080033, 1440044, 1800055, 2160066, 3600110, 4320132, 5400165, 7200220, 10800330, 21600660]

約数ペア:

[(1, 21600660), (2, 10800330), (3, 7200220), (4, 5400165), (5, 4320132), (6, 3600110), (10, 2160066), (12, 1800055), (15, 1440044), (20, 1080033), (30, 720022), (60, 360011), (521, 41460), (691, 31260), (1042, 20730), (1382, 15630), (1563, 13820), (2073, 10420), (2084, 10365), (2605, 8292), (2764, 7815), (3126, 6910), (3455, 6252), (4146, 5210)]