20567799

素因数分解:

$3^2\times 7^2\times {\mathrm{46639}}^1$

素因数の和:46659

約数の個数: 18

約数和(自身を含む): 34560240

約数和(自身を除く): 13992441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 46639, 139917, 326473, 419751, 979419, 2285311, 2938257, 6855933, 20567799]

約数ペア:

[(1, 20567799), (3, 6855933), (7, 2938257), (9, 2285311), (21, 979419), (49, 419751), (63, 326473), (147, 139917), (441, 46639)]