20520604

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{1171}}^1$

素因数の和:1525

約数の個数: 24

約数和(自身を含む): 38821328

約数和(自身を除く): 18300724

約数列:

[1, 2, 4, 13, 26, 52, 337, 674, 1171, 1348, 2342, 4381, 4684, 8762, 15223, 17524, 30446, 60892, 394627, 789254, 1578508, 5130151, 10260302, 20520604]

約数ペア:

[(1, 20520604), (2, 10260302), (4, 5130151), (13, 1578508), (26, 789254), (52, 394627), (337, 60892), (674, 30446), (1171, 17524), (1348, 15223), (2342, 8762), (4381, 4684)]