21709562

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67421}}^1$

素因数の和:67453

約数の個数: 16

約数和(自身を含む): 38835072

約数和(自身を除く): 17125510

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 67421, 134842, 471947, 943894, 1550683, 3101366, 10854781, 21709562]

約数ペア:

[(1, 21709562), (2, 10854781), (7, 3101366), (14, 1550683), (23, 943894), (46, 471947), (161, 134842), (322, 67421)]