27428877

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{41}}^2$

素因数の和:139

約数の個数: 54

約数和(自身を含む): 48516234

約数和(自身を除く): 21087357

約数列:

[1, 3, 7, 9, 21, 37, 41, 49, 63, 111, 123, 147, 259, 287, 333, 369, 441, 777, 861, 1517, 1681, 1813, 2009, 2331, 2583, 4551, 5043, 5439, 6027, 10619, 11767, 13653, 15129, 16317, 18081, 31857, 35301, 62197, 74333, 82369, 95571, 105903, 186591, 222999, 247107, 435379, 559773, 668997, 741321, 1306137, 3047653, 3918411, 9142959, 27428877]

約数ペア:

[(1, 27428877), (3, 9142959), (7, 3918411), (9, 3047653), (21, 1306137), (37, 741321), (41, 668997), (49, 559773), (63, 435379), (111, 247107), (123, 222999), (147, 186591), (259, 105903), (287, 95571), (333, 82369), (369, 74333), (441, 62197), (777, 35301), (861, 31857), (1517, 18081), (1681, 16317), (1813, 15129), (2009, 13653), (2331, 11767), (2583, 10619), (4551, 6027), (5043, 5439)]