21023431

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 25508736

約数和(自身を除く): 4485305

約数列:

[1, 11, 13, 43, 143, 169, 263, 473, 559, 1859, 2893, 3419, 6149, 7267, 11309, 37609, 44447, 79937, 124399, 147017, 488917, 1617187, 1911221, 21023431]

約数ペア:

[(1, 21023431), (11, 1911221), (13, 1617187), (43, 488917), (143, 147017), (169, 124399), (263, 79937), (473, 44447), (559, 37609), (1859, 11309), (2893, 7267), (3419, 6149)]