20542863

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{467}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 31629312

約数和(自身を除く): 11086449

約数列:

[1, 3, 11, 31, 33, 43, 93, 129, 341, 467, 473, 1023, 1333, 1401, 1419, 3999, 5137, 14477, 14663, 15411, 20081, 43431, 43989, 60243, 159247, 220891, 477741, 622511, 662673, 1867533, 6847621, 20542863]

約数ペア:

[(1, 20542863), (3, 6847621), (11, 1867533), (31, 662673), (33, 622511), (43, 477741), (93, 220891), (129, 159247), (341, 60243), (467, 43989), (473, 43431), (1023, 20081), (1333, 15411), (1401, 14663), (1419, 14477), (3999, 5137)]