20859615

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66221}}^1$

素因数の和:66239

約数の個数: 24

約数和(自身を含む): 41322528

約数和(自身を除く): 20462913

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66221, 198663, 331105, 463547, 595989, 993315, 1390641, 2317735, 2979945, 4171923, 6953205, 20859615]

約数ペア:

[(1, 20859615), (3, 6953205), (5, 4171923), (7, 2979945), (9, 2317735), (15, 1390641), (21, 993315), (35, 595989), (45, 463547), (63, 331105), (105, 198663), (315, 66221)]