18716967

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{7789}}^1$

素因数の和:7887

約数の個数: 16

約数和(自身を含む): 28044000

約数和(自身を除く): 9327033

約数列:

[1, 3, 9, 27, 89, 267, 801, 2403, 7789, 23367, 70101, 210303, 693221, 2079663, 6238989, 18716967]

約数ペア:

[(1, 18716967), (3, 6238989), (9, 2079663), (27, 693221), (89, 210303), (267, 70101), (801, 23367), (2403, 7789)]