28715211

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{11117}}^1$

素因数の和:11171

約数の個数: 24

約数和(自身を含む): 48563424

約数和(自身を除く): 19848213

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 11117, 33351, 77819, 100053, 233457, 455797, 700371, 1367391, 3190579, 4102173, 9571737, 28715211]

約数ペア:

[(1, 28715211), (3, 9571737), (7, 4102173), (9, 3190579), (21, 1367391), (41, 700371), (63, 455797), (123, 233457), (287, 100053), (369, 77819), (861, 33351), (2583, 11117)]