28919121

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{599}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 51072000

約数和(自身を除く): 22152879

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 121, 133, 209, 231, 363, 399, 599, 627, 847, 1463, 1797, 2299, 2541, 4193, 4389, 6589, 6897, 11381, 12579, 16093, 19767, 34143, 46123, 48279, 72479, 79667, 125191, 138369, 217437, 239001, 375573, 507353, 876337, 1377101, 1522059, 2629011, 4131303, 9639707, 28919121]

約数ペア:

[(1, 28919121), (3, 9639707), (7, 4131303), (11, 2629011), (19, 1522059), (21, 1377101), (33, 876337), (57, 507353), (77, 375573), (121, 239001), (133, 217437), (209, 138369), (231, 125191), (363, 79667), (399, 72479), (599, 48279), (627, 46123), (847, 34143), (1463, 19767), (1797, 16093), (2299, 12579), (2541, 11381), (4193, 6897), (4389, 6589)]