20491564

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{1093}}^1$

素因数の和:1249

約数の個数: 24

約数和(自身を含む): 37064720

約数和(自身を除く): 16573156

約数列:

[1, 2, 4, 43, 86, 109, 172, 218, 436, 1093, 2186, 4372, 4687, 9374, 18748, 46999, 93998, 119137, 187996, 238274, 476548, 5122891, 10245782, 20491564]

約数ペア:

[(1, 20491564), (2, 10245782), (4, 5122891), (43, 476548), (86, 238274), (109, 187996), (172, 119137), (218, 93998), (436, 46999), (1093, 18748), (2186, 9374), (4372, 4687)]