18308385

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2927}}^1$

素因数の和:3077

約数の個数: 24

約数和(自身を含む): 31973760

約数和(自身を除く): 13665375

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 2927, 6255, 8781, 14635, 26343, 43905, 131715, 406853, 1220559, 2034265, 3661677, 6102795, 18308385]

約数ペア:

[(1, 18308385), (3, 6102795), (5, 3661677), (9, 2034265), (15, 1220559), (45, 406853), (139, 131715), (417, 43905), (695, 26343), (1251, 14635), (2085, 8781), (2927, 6255)]