18485571

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:283

約数の個数: 32

約数和(自身を含む): 27715072

約数和(自身を除く): 9229501

約数列:

[1, 3, 13, 39, 43, 73, 129, 151, 219, 453, 559, 949, 1677, 1963, 2847, 3139, 5889, 6493, 9417, 11023, 19479, 33069, 40807, 84409, 122421, 143299, 253227, 429897, 473989, 1421967, 6161857, 18485571]

約数ペア:

[(1, 18485571), (3, 6161857), (13, 1421967), (39, 473989), (43, 429897), (73, 253227), (129, 143299), (151, 122421), (219, 84409), (453, 40807), (559, 33069), (949, 19479), (1677, 11023), (1963, 9417), (2847, 6493), (3139, 5889)]