19207727

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{691}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 25310592

約数和(自身を除く): 6102865

約数列:

[1, 7, 11, 19, 77, 133, 209, 361, 691, 1463, 2527, 3971, 4837, 7601, 13129, 27797, 53207, 91903, 144419, 249451, 1010933, 1746157, 2743961, 19207727]

約数ペア:

[(1, 19207727), (7, 2743961), (11, 1746157), (19, 1010933), (77, 249451), (133, 144419), (209, 91903), (361, 53207), (691, 27797), (1463, 13129), (2527, 7601), (3971, 4837)]