20386828

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{66191}}^1$

素因数の和:66213

約数の個数: 24

約数和(自身を含む): 44481024

約数和(自身を除く): 24094196

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 66191, 132382, 264764, 463337, 728101, 926674, 1456202, 1853348, 2912404, 5096707, 10193414, 20386828]

約数ペア:

[(1, 20386828), (2, 10193414), (4, 5096707), (7, 2912404), (11, 1853348), (14, 1456202), (22, 926674), (28, 728101), (44, 463337), (77, 264764), (154, 132382), (308, 66191)]