19704995

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6691}}^1$

素因数の和:6746

約数の個数: 16

約数和(自身を含む): 25697280

約数和(自身を除く): 5992285

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 6691, 33455, 127129, 207421, 635645, 1037105, 3940999, 19704995]

約数ペア:

[(1, 19704995), (5, 3940999), (19, 1037105), (31, 635645), (95, 207421), (155, 127129), (589, 33455), (2945, 6691)]