20286825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20807}}^1$

素因数の和:20833

約数の個数: 24

約数和(自身を含む): 36122688

約数和(自身を除く): 15835863

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 20807, 62421, 104035, 270491, 312105, 520175, 811473, 1352455, 1560525, 4057365, 6762275, 20286825]

約数ペア:

[(1, 20286825), (3, 6762275), (5, 4057365), (13, 1560525), (15, 1352455), (25, 811473), (39, 520175), (65, 312105), (75, 270491), (195, 104035), (325, 62421), (975, 20807)]