18189479

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12433}}^1$

素因数の和:12470

約数の個数: 16

約数和(自身を含む): 23873280

約数和(自身を除く): 5683801

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 12433, 87031, 136763, 236227, 957341, 1653589, 2598497, 18189479]

約数ペア:

[(1, 18189479), (7, 2598497), (11, 1653589), (19, 957341), (77, 236227), (133, 136763), (209, 87031), (1463, 12433)]