2006991

素因数分解:

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

素因数の和:101

約数の個数: 48

約数和(自身を含む): 3638880

約数和(自身を除く): 1631889

約数列:

[1, 3, 7, 9, 21, 27, 37, 41, 49, 63, 111, 123, 147, 189, 259, 287, 333, 369, 441, 777, 861, 999, 1107, 1323, 1517, 1813, 2009, 2331, 2583, 4551, 5439, 6027, 6993, 7749, 10619, 13653, 16317, 18081, 31857, 40959, 48951, 54243, 74333, 95571, 222999, 286713, 668997, 2006991]

約数ペア:

[(1, 2006991), (3, 668997), (7, 286713), (9, 222999), (21, 95571), (27, 74333), (37, 54243), (41, 48951), (49, 40959), (63, 31857), (111, 18081), (123, 16317), (147, 13653), (189, 10619), (259, 7749), (287, 6993), (333, 6027), (369, 5439), (441, 4551), (777, 2583), (861, 2331), (999, 2009), (1107, 1813), (1323, 1517)]