21217042

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{443}}^1$

素因数の和:774

約数の個数: 32

約数和(自身を含む): 39896064

約数和(自身を除く): 18679022

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 311, 443, 622, 886, 2177, 3101, 3421, 4354, 4873, 6202, 6842, 9746, 23947, 34111, 47894, 68222, 137773, 275546, 964411, 1515503, 1928822, 3031006, 10608521, 21217042]

約数ペア:

[(1, 21217042), (2, 10608521), (7, 3031006), (11, 1928822), (14, 1515503), (22, 964411), (77, 275546), (154, 137773), (311, 68222), (443, 47894), (622, 34111), (886, 23947), (2177, 9746), (3101, 6842), (3421, 6202), (4354, 4873)]