21266488

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37441}}^1$

素因数の和:37518

約数の個数: 16

約数和(自身を含む): 40437360

約数和(自身を除く): 19170872

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37441, 74882, 149764, 299528, 2658311, 5316622, 10633244, 21266488]

約数ペア:

[(1, 21266488), (2, 10633244), (4, 5316622), (8, 2658311), (71, 299528), (142, 149764), (284, 74882), (568, 37441)]