21285280

素因数分解:

$2^5\times 5^1\times {\mathrm{133033}}^1$

素因数の和:133048

約数の個数: 24

約数和(自身を含む): 50286852

約数和(自身を除く): 29001572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 133033, 266066, 532132, 665165, 1064264, 1330330, 2128528, 2660660, 4257056, 5321320, 10642640, 21285280]

約数ペア:

[(1, 21285280), (2, 10642640), (4, 5321320), (5, 4257056), (8, 2660660), (10, 2128528), (16, 1330330), (20, 1064264), (32, 665165), (40, 532132), (80, 266066), (160, 133033)]