2590259

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:254

約数の個数: 16

約数和(自身を含む): 3104448

約数和(自身を除く): 514189

約数列:

[1, 7, 37, 73, 137, 259, 511, 959, 2701, 5069, 10001, 18907, 35483, 70007, 370037, 2590259]

約数ペア:

[(1, 2590259), (7, 370037), (37, 70007), (73, 35483), (137, 18907), (259, 10001), (511, 5069), (959, 2701)]