28216851

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23339}}^1$

素因数の和:23386

約数の個数: 16

約数和(自身を含む): 41825280

約数和(自身を除く): 13608429

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 23339, 70017, 303407, 723509, 910221, 2170527, 9405617, 28216851]

約数ペア:

[(1, 28216851), (3, 9405617), (13, 2170527), (31, 910221), (39, 723509), (93, 303407), (403, 70017), (1209, 23339)]