17991909

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{3943}}^1$

素因数の和:3978

約数の個数: 24

約数和(自身を含む): 28870080

約数和(自身を除く): 10878171

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 3943, 4563, 11829, 35487, 51259, 106461, 153777, 461331, 666367, 1383993, 1999101, 5997303, 17991909]

約数ペア:

[(1, 17991909), (3, 5997303), (9, 1999101), (13, 1383993), (27, 666367), (39, 461331), (117, 153777), (169, 106461), (351, 51259), (507, 35487), (1521, 11829), (3943, 4563)]