28253665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1423}}^1$

素因数の和:1477

約数の個数: 24

約数和(自身を含む): 39063168

約数和(自身を除く): 10809503

約数列:

[1, 5, 11, 19, 55, 95, 209, 361, 1045, 1423, 1805, 3971, 7115, 15653, 19855, 27037, 78265, 135185, 297407, 513703, 1487035, 2568515, 5650733, 28253665]

約数ペア:

[(1, 28253665), (5, 5650733), (11, 2568515), (19, 1487035), (55, 513703), (95, 297407), (209, 135185), (361, 78265), (1045, 27037), (1423, 19855), (1805, 15653), (3971, 7115)]