21811097

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{2341}}^1$

素因数の和:2381

約数の個数: 16

約数和(自身を含む): 27429504

約数和(自身を除く): 5618407

約数列:

[1, 7, 11, 77, 121, 847, 1331, 2341, 9317, 16387, 25751, 180257, 283261, 1982827, 3115871, 21811097]

約数ペア:

[(1, 21811097), (7, 3115871), (11, 1982827), (77, 283261), (121, 180257), (847, 25751), (1331, 16387), (2341, 9317)]