21381288

素因数分解:

$2^3\times 3^1\times {\mathrm{890887}}^1$

素因数の和:890896

約数の個数: 16

約数和(自身を含む): 53453280

約数和(自身を除く): 32071992

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 890887, 1781774, 2672661, 3563548, 5345322, 7127096, 10690644, 21381288]

約数ペア:

[(1, 21381288), (2, 10690644), (3, 7127096), (4, 5345322), (6, 3563548), (8, 2672661), (12, 1781774), (24, 890887)]