2778188

素因数分解:

$2^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{317}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 5591712

約数和(自身を除く): 2813524

約数列:

[1, 2, 4, 7, 14, 28, 313, 317, 626, 634, 1252, 1268, 2191, 2219, 4382, 4438, 8764, 8876, 99221, 198442, 396884, 694547, 1389094, 2778188]

約数ペア:

[(1, 2778188), (2, 1389094), (4, 694547), (7, 396884), (14, 198442), (28, 99221), (313, 8876), (317, 8764), (626, 4438), (634, 4382), (1252, 2219), (1268, 2191)]