21062840

素因数分解:

$2^3\times 5^1\times {\mathrm{526571}}^1$

素因数の和:526582

約数の個数: 16

約数和(自身を含む): 47391480

約数和(自身を除く): 26328640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 526571, 1053142, 2106284, 2632855, 4212568, 5265710, 10531420, 21062840]

約数ペア:

[(1, 21062840), (2, 10531420), (4, 5265710), (5, 4212568), (8, 2632855), (10, 2106284), (20, 1053142), (40, 526571)]