20380882

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12473}}^1$

素因数の和:12537

約数の個数: 16

約数和(自身を含む): 32931360

約数和(自身を除く): 12550478

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12473, 24946, 236987, 473974, 536339, 1072678, 10190441, 20380882]

約数ペア:

[(1, 20380882), (2, 10190441), (19, 1072678), (38, 536339), (43, 473974), (86, 236987), (817, 24946), (1634, 12473)]