19851490

素因数分解:

$2^1\times 5^1\times {\mathrm{859}}^1\times {\mathrm{2311}}^1$

素因数の和:3177

約数の個数: 16

約数和(自身を含む): 35789760

約数和(自身を除く): 15938270

約数列:

[1, 2, 5, 10, 859, 1718, 2311, 4295, 4622, 8590, 11555, 23110, 1985149, 3970298, 9925745, 19851490]

約数ペア:

[(1, 19851490), (2, 9925745), (5, 3970298), (10, 1985149), (859, 23110), (1718, 11555), (2311, 8590), (4295, 4622)]