287712009

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{7907}}^1$

素因数の和:8237

約数の個数: 24

約数和(自身を含む): 449047872

約数和(自身を除く): 161335863

約数列:

[1, 3, 9, 13, 39, 117, 311, 933, 2799, 4043, 7907, 12129, 23721, 36387, 71163, 102791, 308373, 925119, 2459077, 7377231, 22131693, 31968001, 95904003, 287712009]

約数ペア:

[(1, 287712009), (3, 95904003), (9, 31968001), (13, 22131693), (39, 7377231), (117, 2459077), (311, 925119), (933, 308373), (2799, 102791), (4043, 71163), (7907, 36387), (12129, 23721)]