28497777

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 51363840

約数和(自身を除く): 22866063

約数列:

[1, 3, 7, 11, 19, 21, 33, 43, 57, 77, 129, 133, 151, 209, 231, 301, 399, 453, 473, 627, 817, 903, 1057, 1419, 1463, 1661, 2451, 2869, 3171, 3311, 4389, 4983, 5719, 6493, 8607, 8987, 9933, 11627, 17157, 19479, 20083, 26961, 31559, 34881, 45451, 60249, 62909, 71423, 94677, 123367, 136353, 188727, 214269, 220913, 370101, 499961, 662739, 863569, 1357037, 1499883, 2590707, 4071111, 9499259, 28497777]

約数ペア:

[(1, 28497777), (3, 9499259), (7, 4071111), (11, 2590707), (19, 1499883), (21, 1357037), (33, 863569), (43, 662739), (57, 499961), (77, 370101), (129, 220913), (133, 214269), (151, 188727), (209, 136353), (231, 123367), (301, 94677), (399, 71423), (453, 62909), (473, 60249), (627, 45451), (817, 34881), (903, 31559), (1057, 26961), (1419, 20083), (1463, 19479), (1661, 17157), (2451, 11627), (2869, 9933), (3171, 8987), (3311, 8607), (4389, 6493), (4983, 5719)]