20079891

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2351}}^1$

素因数の和:2443

約数の個数: 24

約数和(自身を含む): 31676736

約数和(自身を除く): 11596845

約数列:

[1, 3, 9, 13, 39, 73, 117, 219, 657, 949, 2351, 2847, 7053, 8541, 21159, 30563, 91689, 171623, 275067, 514869, 1544607, 2231099, 6693297, 20079891]

約数ペア:

[(1, 20079891), (3, 6693297), (9, 2231099), (13, 1544607), (39, 514869), (73, 275067), (117, 171623), (219, 91689), (657, 30563), (949, 21159), (2351, 8541), (2847, 7053)]