21000446997

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{79}}^2\times {\mathrm{21163}}^1$

素因数の和:21377

約数の個数: 24

約数和(自身を含む): 28895971104

約数和(自身を除く): 7895524107

約数列:

[1, 3, 53, 79, 159, 237, 4187, 6241, 12561, 18723, 21163, 63489, 330773, 992319, 1121639, 1671877, 3364917, 5015631, 88609481, 132078283, 265828443, 396234849, 7000148999, 21000446997]

約数ペア:

[(1, 21000446997), (3, 7000148999), (53, 396234849), (79, 265828443), (159, 132078283), (237, 88609481), (4187, 5015631), (6241, 3364917), (12561, 1671877), (18723, 1121639), (21163, 992319), (63489, 330773)]