128916963

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{19867}}^1$

素因数の和:19983

約数の個数: 24

約数和(自身を含む): 214892288

約数和(自身を除く): 85975325

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 6489, 19867, 59601, 139069, 178803, 417207, 1251621, 2046301, 6138903, 14324107, 18416709, 42972321, 128916963]

約数ペア:

[(1, 128916963), (3, 42972321), (7, 18416709), (9, 14324107), (21, 6138903), (63, 2046301), (103, 1251621), (309, 417207), (721, 178803), (927, 139069), (2163, 59601), (6489, 19867)]