15857721

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 25920000

約数和(自身を除く): 10062279

約数列:

[1, 3, 9, 11, 27, 33, 99, 107, 297, 321, 499, 963, 1177, 1497, 2889, 3531, 4491, 5489, 10593, 13473, 16467, 31779, 49401, 53393, 148203, 160179, 480537, 587323, 1441611, 1761969, 5285907, 15857721]

約数ペア:

[(1, 15857721), (3, 5285907), (9, 1761969), (11, 1441611), (27, 587323), (33, 480537), (99, 160179), (107, 148203), (297, 53393), (321, 49401), (499, 31779), (963, 16467), (1177, 13473), (1497, 10593), (2889, 5489), (3531, 4491)]