21158288

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{13093}}^1$

素因数の和:13202

約数の個数: 20

約数和(自身を含む): 41403228

約数和(自身を除く): 20244940

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 13093, 26186, 52372, 104744, 209488, 1322393, 2644786, 5289572, 10579144, 21158288]

約数ペア:

[(1, 21158288), (2, 10579144), (4, 5289572), (8, 2644786), (16, 1322393), (101, 209488), (202, 104744), (404, 52372), (808, 26186), (1616, 13093)]