20505023

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 26404224

約数和(自身を除く): 5899201

約数列:

[1, 7, 11, 43, 77, 121, 301, 473, 563, 847, 3311, 3941, 5203, 6193, 24209, 36421, 43351, 68123, 169463, 266299, 476861, 1864093, 2929289, 20505023]

約数ペア:

[(1, 20505023), (7, 2929289), (11, 1864093), (43, 476861), (77, 266299), (121, 169463), (301, 68123), (473, 43351), (563, 36421), (847, 24209), (3311, 6193), (3941, 5203)]