1291250889

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{693103}}^1$

素因数の和:693138

約数の個数: 20

約数和(自身を含む): 2012774016

約数和(自身を除く): 721523127

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 693103, 2079309, 6237927, 15941369, 18713781, 47824107, 56141343, 143472321, 430416963, 1291250889]

約数ペア:

[(1, 1291250889), (3, 430416963), (9, 143472321), (23, 56141343), (27, 47824107), (69, 18713781), (81, 15941369), (207, 6237927), (621, 2079309), (1863, 693103)]