31659831

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 58260384

約数和(自身を除く): 26600553

約数列:

[1, 3, 7, 9, 17, 21, 41, 49, 51, 63, 103, 119, 123, 147, 153, 287, 309, 357, 369, 441, 697, 721, 833, 861, 927, 1071, 1751, 2009, 2091, 2163, 2499, 2583, 4223, 4879, 5047, 5253, 6027, 6273, 6489, 7497, 12257, 12669, 14637, 15141, 15759, 18081, 29561, 34153, 36771, 38007, 43911, 45423, 71791, 85799, 88683, 102459, 110313, 206927, 215373, 257397, 266049, 307377, 502537, 620781, 646119, 772191, 1507611, 1862343, 3517759, 4522833, 10553277, 31659831]

約数ペア:

[(1, 31659831), (3, 10553277), (7, 4522833), (9, 3517759), (17, 1862343), (21, 1507611), (41, 772191), (49, 646119), (51, 620781), (63, 502537), (103, 307377), (119, 266049), (123, 257397), (147, 215373), (153, 206927), (287, 110313), (309, 102459), (357, 88683), (369, 85799), (441, 71791), (697, 45423), (721, 43911), (833, 38007), (861, 36771), (927, 34153), (1071, 29561), (1751, 18081), (2009, 15759), (2091, 15141), (2163, 14637), (2499, 12669), (2583, 12257), (4223, 7497), (4879, 6489), (5047, 6273), (5253, 6027)]