18320481

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 27387360

約数和(自身を除く): 9066879

約数列:

[1, 3, 9, 41, 123, 131, 369, 379, 393, 1137, 1179, 3411, 5371, 15539, 16113, 46617, 48339, 49649, 139851, 148947, 446841, 2035609, 6106827, 18320481]

約数ペア:

[(1, 18320481), (3, 6106827), (9, 2035609), (41, 446841), (123, 148947), (131, 139851), (369, 49649), (379, 48339), (393, 46617), (1137, 16113), (1179, 15539), (3411, 5371)]