20906011

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1459}}^1$

素因数の和:1578

約数の個数: 16

約数和(自身を含む): 25228800

約数和(自身を除く): 4322789

約数列:

[1, 7, 23, 89, 161, 623, 1459, 2047, 10213, 14329, 33557, 129851, 234899, 908957, 2986573, 20906011]

約数ペア:

[(1, 20906011), (7, 2986573), (23, 908957), (89, 234899), (161, 129851), (623, 33557), (1459, 14329), (2047, 10213)]