28981323

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{12433}}^1$

素因数の和:12483

約数の個数: 24

約数和(自身を含む): 49139168

約数和(自身を除く): 20157845

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 12433, 37299, 87031, 111897, 261093, 460021, 783279, 1380063, 3220147, 4140189, 9660441, 28981323]

約数ペア:

[(1, 28981323), (3, 9660441), (7, 4140189), (9, 3220147), (21, 1380063), (37, 783279), (63, 460021), (111, 261093), (259, 111897), (333, 87031), (777, 37299), (2331, 12433)]