20004021

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{71699}}^1$

素因数の和:71736

約数の個数: 12

約数和(自身を含む): 29827200

約数和(自身を除く): 9823179

約数列:

[1, 3, 9, 31, 93, 279, 71699, 215097, 645291, 2222669, 6668007, 20004021]

約数ペア:

[(1, 20004021), (3, 6668007), (9, 2222669), (31, 645291), (93, 215097), (279, 71699)]