18670939

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1777}}^1$

素因数の和:1882

約数の個数: 16

約数和(自身を含む): 22758400

約数和(自身を除く): 4087461

約数列:

[1, 7, 19, 79, 133, 553, 1501, 1777, 10507, 12439, 33763, 140383, 236341, 982681, 2667277, 18670939]

約数ペア:

[(1, 18670939), (7, 2667277), (19, 982681), (79, 236341), (133, 140383), (553, 33763), (1501, 12439), (1777, 10507)]