21017287

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2099}}^1$

素因数の和:2166

約数の個数: 16

約数和(自身を含む): 24192000

約数和(自身を除く): 3174713

約数列:

[1, 17, 19, 31, 323, 527, 589, 2099, 10013, 35683, 39881, 65069, 677977, 1106173, 1236311, 21017287]

約数ペア:

[(1, 21017287), (17, 1236311), (19, 1106173), (31, 677977), (323, 65069), (527, 39881), (589, 35683), (2099, 10013)]