19909043

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{859}}^1$

素因数の和:927

約数の個数: 24

約数和(自身を含む): 25882560

約数和(自身を除く): 5973517

約数列:

[1, 7, 11, 43, 49, 77, 301, 473, 539, 859, 2107, 3311, 6013, 9449, 23177, 36937, 42091, 66143, 258559, 406307, 463001, 1809913, 2844149, 19909043]

約数ペア:

[(1, 19909043), (7, 2844149), (11, 1809913), (43, 463001), (49, 406307), (77, 258559), (301, 66143), (473, 42091), (539, 36937), (859, 23177), (2107, 9449), (3311, 6013)]