21808502

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{1409}}^1$

素因数の和:1591

約数の個数: 16

約数和(自身を含む): 33501600

約数和(自身を除く): 11693098

約数列:

[1, 2, 71, 109, 142, 218, 1409, 2818, 7739, 15478, 100039, 153581, 200078, 307162, 10904251, 21808502]

約数ペア:

[(1, 21808502), (2, 10904251), (71, 307162), (109, 200078), (142, 153581), (218, 100039), (1409, 15478), (2818, 7739)]