21372449

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{829}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 25497600

約数和(自身を除く): 4125151

約数列:

[1, 7, 29, 127, 203, 829, 889, 3683, 5803, 24041, 25781, 105283, 168287, 736981, 3053207, 21372449]

約数ペア:

[(1, 21372449), (7, 3053207), (29, 736981), (127, 168287), (203, 105283), (829, 25781), (889, 24041), (3683, 5803)]