213202287

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:358

約数の個数: 80

約数和(自身を含む): 368517600

約数和(自身を除く): 155315313

約数列:

[1, 3, 9, 17, 19, 27, 29, 51, 57, 81, 87, 153, 171, 261, 281, 323, 459, 493, 513, 551, 783, 843, 969, 1377, 1479, 1539, 1653, 2349, 2529, 2907, 4437, 4777, 4959, 5339, 7587, 8149, 8721, 9367, 13311, 14331, 14877, 16017, 22761, 24447, 26163, 28101, 39933, 42993, 44631, 48051, 73341, 84303, 90763, 128979, 138533, 144153, 154831, 220023, 252909, 272289, 386937, 415599, 432459, 464493, 660069, 758727, 816867, 1246797, 1393479, 2450601, 2632127, 3740391, 4180437, 7351803, 7896381, 11221173, 12541311, 23689143, 71067429, 213202287]

約数ペア:

[(1, 213202287), (3, 71067429), (9, 23689143), (17, 12541311), (19, 11221173), (27, 7896381), (29, 7351803), (51, 4180437), (57, 3740391), (81, 2632127), (87, 2450601), (153, 1393479), (171, 1246797), (261, 816867), (281, 758727), (323, 660069), (459, 464493), (493, 432459), (513, 415599), (551, 386937), (783, 272289), (843, 252909), (969, 220023), (1377, 154831), (1479, 144153), (1539, 138533), (1653, 128979), (2349, 90763), (2529, 84303), (2907, 73341), (4437, 48051), (4777, 44631), (4959, 42993), (5339, 39933), (7587, 28101), (8149, 26163), (8721, 24447), (9367, 22761), (13311, 16017), (14331, 14877)]