18798309

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{353}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 27961752

約数和(自身を除く): 9163443

約数列:

[1, 3, 9, 61, 97, 183, 291, 353, 549, 873, 1059, 3177, 5917, 17751, 21533, 34241, 53253, 64599, 102723, 193797, 308169, 2088701, 6266103, 18798309]

約数ペア:

[(1, 18798309), (3, 6266103), (9, 2088701), (61, 308169), (97, 193797), (183, 102723), (291, 64599), (353, 53253), (549, 34241), (873, 21533), (1059, 17751), (3177, 5917)]