2689839

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{311}}^1$

素因数の和:379

約数の個数: 18

約数和(自身を含む): 4027608

約数和(自身を除く): 1337769

約数列:

[1, 3, 9, 31, 93, 279, 311, 933, 961, 2799, 2883, 8649, 9641, 28923, 86769, 298871, 896613, 2689839]

約数ペア:

[(1, 2689839), (3, 896613), (9, 298871), (31, 86769), (93, 28923), (279, 9641), (311, 8649), (933, 2883), (961, 2799)]