21585540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1571}}^1$

素因数の和:1812

約数の個数: 48

約数和(自身を含む): 60742080

約数和(自身を除く): 39156540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 229, 458, 687, 916, 1145, 1374, 1571, 2290, 2748, 3142, 3435, 4580, 4713, 6284, 6870, 7855, 9426, 13740, 15710, 18852, 23565, 31420, 47130, 94260, 359759, 719518, 1079277, 1439036, 1798795, 2158554, 3597590, 4317108, 5396385, 7195180, 10792770, 21585540]

約数ペア:

[(1, 21585540), (2, 10792770), (3, 7195180), (4, 5396385), (5, 4317108), (6, 3597590), (10, 2158554), (12, 1798795), (15, 1439036), (20, 1079277), (30, 719518), (60, 359759), (229, 94260), (458, 47130), (687, 31420), (916, 23565), (1145, 18852), (1374, 15710), (1571, 13740), (2290, 9426), (2748, 7855), (3142, 6870), (3435, 6284), (4580, 4713)]