20994808

素因数分解:

$2^3\times {\mathrm{1613}}^1\times {\mathrm{1627}}^1$

素因数の和:3246

約数の個数: 16

約数和(自身を含む): 39413880

約数和(自身を除く): 18419072

約数列:

[1, 2, 4, 8, 1613, 1627, 3226, 3254, 6452, 6508, 12904, 13016, 2624351, 5248702, 10497404, 20994808]

約数ペア:

[(1, 20994808), (2, 10497404), (4, 5248702), (8, 2624351), (1613, 13016), (1627, 12904), (3226, 6508), (3254, 6452)]