20854229

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 24769920

約数和(自身を除く): 3915691

約数列:

[1, 11, 19, 47, 121, 193, 209, 517, 893, 2123, 2299, 3667, 5687, 9071, 9823, 23353, 40337, 99781, 108053, 172349, 443707, 1097591, 1895839, 20854229]

約数ペア:

[(1, 20854229), (11, 1895839), (19, 1097591), (47, 443707), (121, 172349), (193, 108053), (209, 99781), (517, 40337), (893, 23353), (2123, 9823), (2299, 9071), (3667, 5687)]