20425869

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{409}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 30700800

約数和(自身を除く): 10274931

約数列:

[1, 3, 9, 31, 93, 179, 279, 409, 537, 1227, 1611, 3681, 5549, 12679, 16647, 38037, 49941, 73211, 114111, 219633, 658899, 2269541, 6808623, 20425869]

約数ペア:

[(1, 20425869), (3, 6808623), (9, 2269541), (31, 658899), (93, 219633), (179, 114111), (279, 73211), (409, 49941), (537, 38037), (1227, 16647), (1611, 12679), (3681, 5549)]