20191311

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7817}}^1$

素因数の和:7871

約数の個数: 24

約数和(自身を含む): 34149024

約数和(自身を除く): 13957713

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 7817, 23451, 54719, 70353, 164157, 320497, 492471, 961491, 2243479, 2884473, 6730437, 20191311]

約数ペア:

[(1, 20191311), (3, 6730437), (7, 2884473), (9, 2243479), (21, 961491), (41, 492471), (63, 320497), (123, 164157), (287, 70353), (369, 54719), (861, 23451), (2583, 7817)]