20543913

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3313}}^1$

素因数の和:3385

約数の個数: 24

約数和(自身を含む): 32569992

約数和(自身を除く): 12026079

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3313, 6201, 9939, 29817, 43069, 129207, 175589, 387621, 526767, 1580301, 2282657, 6847971, 20543913]

約数ペア:

[(1, 20543913), (3, 6847971), (9, 2282657), (13, 1580301), (39, 526767), (53, 387621), (117, 175589), (159, 129207), (477, 43069), (689, 29817), (2067, 9939), (3313, 6201)]