21680528

素因数分解:

$2^4\times {\mathrm{701}}^1\times {\mathrm{1933}}^1$

素因数の和:2642

約数の個数: 20

約数和(自身を含む): 42087708

約数和(自身を除く): 20407180

約数列:

[1, 2, 4, 8, 16, 701, 1402, 1933, 2804, 3866, 5608, 7732, 11216, 15464, 30928, 1355033, 2710066, 5420132, 10840264, 21680528]

約数ペア:

[(1, 21680528), (2, 10840264), (4, 5420132), (8, 2710066), (16, 1355033), (701, 30928), (1402, 15464), (1933, 11216), (2804, 7732), (3866, 5608)]