28111013

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{12433}}^1$

素因数の和:12476

約数の個数: 16

約数和(自身を含む): 35809920

約数和(自身を除く): 7698907

約数列:

[1, 7, 17, 19, 119, 133, 323, 2261, 12433, 87031, 211361, 236227, 1479527, 1653589, 4015859, 28111013]

約数ペア:

[(1, 28111013), (7, 4015859), (17, 1653589), (19, 1479527), (119, 236227), (133, 211361), (323, 87031), (2261, 12433)]