18857745

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3407}}^1$

素因数の和:3462

約数の個数: 32

約数和(自身を含む): 34352640

約数和(自身を除く): 15494895

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 123, 135, 205, 369, 615, 1107, 1845, 3407, 5535, 10221, 17035, 30663, 51105, 91989, 139687, 153315, 419061, 459945, 698435, 1257183, 2095305, 3771549, 6285915, 18857745]

約数ペア:

[(1, 18857745), (3, 6285915), (5, 3771549), (9, 2095305), (15, 1257183), (27, 698435), (41, 459945), (45, 419061), (123, 153315), (135, 139687), (205, 91989), (369, 51105), (615, 30663), (1107, 17035), (1845, 10221), (3407, 5535)]