20258791

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{4339}}^1$

素因数の和:4398

約数の個数: 16

約数和(自身を含む): 24998400

約数和(自身を除く): 4739609

約数列:

[1, 7, 23, 29, 161, 203, 667, 4339, 4669, 30373, 99797, 125831, 698579, 880817, 2894113, 20258791]

約数ペア:

[(1, 20258791), (7, 2894113), (23, 880817), (29, 698579), (161, 125831), (203, 99797), (667, 30373), (4339, 4669)]