21288306

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{272927}}^1$

素因数の和:272945

約数の個数: 16

約数和(自身を含む): 45851904

約数和(自身を除く): 24563598

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 272927, 545854, 818781, 1637562, 3548051, 7096102, 10644153, 21288306]

約数ペア:

[(1, 21288306), (2, 10644153), (3, 7096102), (6, 3548051), (13, 1637562), (26, 818781), (39, 545854), (78, 272927)]