28205009

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{2203}}^1$

素因数の和:2300

約数の個数: 16

約数和(自身を含む): 33853440

約数和(自身を除く): 5648431

約数列:

[1, 7, 31, 59, 217, 413, 1829, 2203, 12803, 15421, 68293, 129977, 478051, 909839, 4029287, 28205009]

約数ペア:

[(1, 28205009), (7, 4029287), (31, 909839), (59, 478051), (217, 129977), (413, 68293), (1829, 15421), (2203, 12803)]