28265211

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7793}}^1$

素因数の和:7843

約数の個数: 24

約数和(自身を含む): 45392256

約数和(自身を除く): 17127045

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 1209, 3627, 7793, 23379, 70137, 101309, 241583, 303927, 724749, 911781, 2174247, 3140579, 9421737, 28265211]

約数ペア:

[(1, 28265211), (3, 9421737), (9, 3140579), (13, 2174247), (31, 911781), (39, 724749), (93, 303927), (117, 241583), (279, 101309), (403, 70137), (1209, 23379), (3627, 7793)]