20219589

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4019}}^1$

素因数の和:4081

約数の個数: 24

約数和(自身を含む): 32192160

約数和(自身を除く): 11972571

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 4019, 5031, 12057, 36171, 52247, 156741, 172817, 470223, 518451, 1555353, 2246621, 6739863, 20219589]

約数ペア:

[(1, 20219589), (3, 6739863), (9, 2246621), (13, 1555353), (39, 518451), (43, 470223), (117, 172817), (129, 156741), (387, 52247), (559, 36171), (1677, 12057), (4019, 5031)]