211364615

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{1721}}^1$

素因数の和:1784

約数の個数: 48

約数和(自身を含む): 329797440

約数和(自身を除く): 118432825

約数列:

[1, 5, 7, 11, 29, 35, 55, 77, 121, 145, 203, 319, 385, 605, 847, 1015, 1595, 1721, 2233, 3509, 4235, 8605, 11165, 12047, 17545, 18931, 24563, 49909, 60235, 94655, 122815, 132517, 208241, 249545, 349363, 548999, 662585, 1041205, 1457687, 1746815, 2744995, 3842993, 6038989, 7288435, 19214965, 30194945, 42272923, 211364615]

約数ペア:

[(1, 211364615), (5, 42272923), (7, 30194945), (11, 19214965), (29, 7288435), (35, 6038989), (55, 3842993), (77, 2744995), (121, 1746815), (145, 1457687), (203, 1041205), (319, 662585), (385, 548999), (605, 349363), (847, 249545), (1015, 208241), (1595, 132517), (1721, 122815), (2233, 94655), (3509, 60235), (4235, 49909), (8605, 24563), (11165, 18931), (12047, 17545)]