1289691

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 2047136

約数和(自身を除く): 757445

約数列:

[1, 3, 9, 13, 39, 73, 117, 151, 219, 453, 657, 949, 1359, 1963, 2847, 5889, 8541, 11023, 17667, 33069, 99207, 143299, 429897, 1289691]

約数ペア:

[(1, 1289691), (3, 429897), (9, 143299), (13, 99207), (39, 33069), (73, 17667), (117, 11023), (151, 8541), (219, 5889), (453, 2847), (657, 1963), (949, 1359)]