21669842

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{1361}}^1$

素因数の和:1801

約数の個数: 16

約数和(自身を含む): 34322400

約数和(自身を除く): 12652558

約数列:

[1, 2, 19, 38, 419, 838, 1361, 2722, 7961, 15922, 25859, 51718, 570259, 1140518, 10834921, 21669842]

約数ペア:

[(1, 21669842), (2, 10834921), (19, 1140518), (38, 570259), (419, 51718), (838, 25859), (1361, 15922), (2722, 7961)]