42807919

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1847}}^1$

素因数の和:1915

約数の個数: 24

約数和(自身を含む): 55617408

約数和(自身を除く): 12809489

約数列:

[1, 7, 11, 43, 49, 77, 301, 473, 539, 1847, 2107, 3311, 12929, 20317, 23177, 79421, 90503, 142219, 555947, 873631, 995533, 3891629, 6115417, 42807919]

約数ペア:

[(1, 42807919), (7, 6115417), (11, 3891629), (43, 995533), (49, 873631), (77, 555947), (301, 142219), (473, 90503), (539, 79421), (1847, 23177), (2107, 20317), (3311, 12929)]