21116216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{239957}}^1$

素因数の和:239974

約数の個数: 16

約数和(自身を含む): 43192440

約数和(自身を除く): 22076224

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 239957, 479914, 959828, 1919656, 2639527, 5279054, 10558108, 21116216]

約数ペア:

[(1, 21116216), (2, 10558108), (4, 5279054), (8, 2639527), (11, 1919656), (22, 959828), (44, 479914), (88, 239957)]