66786447

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{244639}}^1$

素因数の和:244662

約数の個数: 16

約数和(自身を含む): 109598720

約数和(自身を除く): 42812273

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 244639, 733917, 1712473, 3180307, 5137419, 9540921, 22262149, 66786447]

約数ペア:

[(1, 66786447), (3, 22262149), (7, 9540921), (13, 5137419), (21, 3180307), (39, 1712473), (91, 733917), (273, 244639)]