20785373

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{317}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 27475200

約数和(自身を除く): 6689827

約数列:

[1, 7, 17, 19, 29, 119, 133, 203, 317, 323, 493, 551, 2219, 2261, 3451, 3857, 5389, 6023, 9193, 9367, 37723, 42161, 64351, 65569, 102391, 156281, 174667, 716737, 1093967, 1222669, 2969339, 20785373]

約数ペア:

[(1, 20785373), (7, 2969339), (17, 1222669), (19, 1093967), (29, 716737), (119, 174667), (133, 156281), (203, 102391), (317, 65569), (323, 64351), (493, 42161), (551, 37723), (2219, 9367), (2261, 9193), (3451, 6023), (3857, 5389)]