18840734

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{1987}}^1$

素因数の和:2431

約数の個数: 16

約数和(自身を含む): 30917376

約数和(自身を除く): 12076642

約数列:

[1, 2, 11, 22, 431, 862, 1987, 3974, 4741, 9482, 21857, 43714, 856397, 1712794, 9420367, 18840734]

約数ペア:

[(1, 18840734), (2, 9420367), (11, 1712794), (22, 856397), (431, 43714), (862, 21857), (1987, 9482), (3974, 4741)]