20340009

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 30139200

約数和(自身を除く): 9799191

約数列:

[1, 3, 9, 71, 139, 213, 229, 417, 639, 687, 1251, 2061, 9869, 16259, 29607, 31831, 48777, 88821, 95493, 146331, 286479, 2260001, 6780003, 20340009]

約数ペア:

[(1, 20340009), (3, 6780003), (9, 2260001), (71, 286479), (139, 146331), (213, 95493), (229, 88821), (417, 48777), (639, 31831), (687, 29607), (1251, 16259), (2061, 9869)]