68906691

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 122994144

約数和(自身を除く): 54087453

約数列:

[1, 3, 7, 9, 21, 37, 41, 49, 63, 103, 111, 123, 147, 259, 287, 309, 333, 369, 441, 721, 777, 861, 927, 1517, 1813, 2009, 2163, 2331, 2583, 3811, 4223, 4551, 5047, 5439, 6027, 6489, 10619, 11433, 12669, 13653, 15141, 16317, 18081, 26677, 29561, 31857, 34299, 38007, 45423, 74333, 80031, 88683, 95571, 156251, 186739, 206927, 222999, 240093, 266049, 468753, 560217, 620781, 668997, 1093757, 1406259, 1680651, 1862343, 3281271, 7656299, 9843813, 22968897, 68906691]

約数ペア:

[(1, 68906691), (3, 22968897), (7, 9843813), (9, 7656299), (21, 3281271), (37, 1862343), (41, 1680651), (49, 1406259), (63, 1093757), (103, 668997), (111, 620781), (123, 560217), (147, 468753), (259, 266049), (287, 240093), (309, 222999), (333, 206927), (369, 186739), (441, 156251), (721, 95571), (777, 88683), (861, 80031), (927, 74333), (1517, 45423), (1813, 38007), (2009, 34299), (2163, 31857), (2331, 29561), (2583, 26677), (3811, 18081), (4223, 16317), (4551, 15141), (5047, 13653), (5439, 12669), (6027, 11433), (6489, 10619)]