20815668

素因数分解:

$2^2\times 3^2\times {\mathrm{578213}}^1$

素因数の和:578223

約数の個数: 18

約数和(自身を含む): 52617474

約数和(自身を除く): 31801806

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 578213, 1156426, 1734639, 2312852, 3469278, 5203917, 6938556, 10407834, 20815668]

約数ペア:

[(1, 20815668), (2, 10407834), (3, 6938556), (4, 5203917), (6, 3469278), (9, 2312852), (12, 1734639), (18, 1156426), (36, 578213)]