28296261

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{4447}}^1$

素因数の和:4561

約数の個数: 24

約数和(自身を含む): 47184384

約数和(自身を除く): 18888123

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 4447, 6363, 13341, 31129, 40023, 93387, 280161, 449147, 1347441, 3144029, 4042323, 9432087, 28296261]

約数ペア:

[(1, 28296261), (3, 9432087), (7, 4042323), (9, 3144029), (21, 1347441), (63, 449147), (101, 280161), (303, 93387), (707, 40023), (909, 31129), (2121, 13341), (4447, 6363)]