28217781

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{33713}}^1$

素因数の和:33753

約数の個数: 16

約数和(自身を含む): 43153920

約数和(自身を除く): 14936139

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 33713, 101139, 303417, 910251, 1045103, 3135309, 9405927, 28217781]

約数ペア:

[(1, 28217781), (3, 9405927), (9, 3135309), (27, 1045103), (31, 910251), (93, 303417), (279, 101139), (837, 33713)]