18707666

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^2$

素因数の和:278

約数の個数: 24

約数和(自身を含む): 30510480

約数和(自身を除く): 11802814

約数列:

[1, 2, 19, 38, 43, 86, 107, 214, 817, 1634, 2033, 4066, 4601, 9202, 11449, 22898, 87419, 174838, 217531, 435062, 492307, 984614, 9353833, 18707666]

約数ペア:

[(1, 18707666), (2, 9353833), (19, 984614), (38, 492307), (43, 435062), (86, 217531), (107, 174838), (214, 87419), (817, 22898), (1634, 11449), (2033, 9202), (4066, 4601)]