20482719

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 29942784

約数和(自身を除く): 9460065

約数列:

[1, 3, 23, 37, 69, 71, 111, 113, 213, 339, 851, 1633, 2553, 2599, 2627, 4181, 4899, 7797, 7881, 8023, 12543, 24069, 60421, 96163, 181263, 184529, 288489, 296851, 553587, 890553, 6827573, 20482719]

約数ペア:

[(1, 20482719), (3, 6827573), (23, 890553), (37, 553587), (69, 296851), (71, 288489), (111, 184529), (113, 181263), (213, 96163), (339, 60421), (851, 24069), (1633, 12543), (2553, 8023), (2599, 7881), (2627, 7797), (4181, 4899)]