18997118

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{28871}}^1$

素因数の和:28927

約数の個数: 16

約数和(自身を含む): 33260544

約数和(自身を除く): 14263426

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 28871, 57742, 202097, 404194, 1356937, 2713874, 9498559, 18997118]

約数ペア:

[(1, 18997118), (2, 9498559), (7, 2713874), (14, 1356937), (47, 404194), (94, 202097), (329, 57742), (658, 28871)]