21284488

素因数分解:

$2^3\times {\mathrm{353}}^1\times {\mathrm{7537}}^1$

素因数の和:7896

約数の個数: 16

約数和(自身を含む): 40026780

約数和(自身を除く): 18742292

約数列:

[1, 2, 4, 8, 353, 706, 1412, 2824, 7537, 15074, 30148, 60296, 2660561, 5321122, 10642244, 21284488]

約数ペア:

[(1, 21284488), (2, 10642244), (4, 5321122), (8, 2660561), (353, 60296), (706, 30148), (1412, 15074), (2824, 7537)]