21155528

素因数分解:

$2^3\times {\mathrm{821}}^1\times {\mathrm{3221}}^1$

素因数の和:4048

約数の個数: 16

約数和(自身を含む): 39727260

約数和(自身を除く): 18571732

約数列:

[1, 2, 4, 8, 821, 1642, 3221, 3284, 6442, 6568, 12884, 25768, 2644441, 5288882, 10577764, 21155528]

約数ペア:

[(1, 21155528), (2, 10577764), (4, 5288882), (8, 2644441), (821, 25768), (1642, 12884), (3221, 6568), (3284, 6442)]