18945978

素因数分解:

$2^1\times 3^1\times {\mathrm{139}}^1\times {\mathrm{22717}}^1$

素因数の和:22861

約数の個数: 16

約数和(自身を含む): 38166240

約数和(自身を除く): 19220262

約数列:

[1, 2, 3, 6, 139, 278, 417, 834, 22717, 45434, 68151, 136302, 3157663, 6315326, 9472989, 18945978]

約数ペア:

[(1, 18945978), (2, 9472989), (3, 6315326), (6, 3157663), (139, 136302), (278, 68151), (417, 45434), (834, 22717)]