18815605

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6389}}^1$

素因数の和:6444

約数の個数: 16

約数和(自身を含む): 24537600

約数和(自身を除く): 5721995

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 6389, 31945, 121391, 198059, 606955, 990295, 3763121, 18815605]

約数ペア:

[(1, 18815605), (5, 3763121), (19, 990295), (31, 606955), (95, 198059), (155, 121391), (589, 31945), (2945, 6389)]