20426416

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17981}}^1$

素因数の和:18060

約数の個数: 20

約数和(自身を含む): 40135824

約数和(自身を除く): 19709408

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17981, 35962, 71924, 143848, 287696, 1276651, 2553302, 5106604, 10213208, 20426416]

約数ペア:

[(1, 20426416), (2, 10213208), (4, 5106604), (8, 2553302), (16, 1276651), (71, 287696), (142, 143848), (284, 71924), (568, 35962), (1136, 17981)]