19258821

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{30139}}^1$

素因数の和:30216

約数の個数: 12

約数和(自身を含む): 28211040

約数和(自身を除く): 8952219

約数列:

[1, 3, 9, 71, 213, 639, 30139, 90417, 271251, 2139869, 6419607, 19258821]

約数ペア:

[(1, 19258821), (3, 6419607), (9, 2139869), (71, 271251), (213, 90417), (639, 30139)]