31216383

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 20675457

約数列:

[1, 3, 9, 11, 29, 33, 83, 87, 99, 131, 249, 261, 319, 393, 747, 913, 957, 1179, 1441, 2407, 2739, 2871, 3799, 4323, 7221, 8217, 10873, 11397, 12969, 21663, 26477, 32619, 34191, 41789, 79431, 97857, 119603, 125367, 238293, 315317, 358809, 376101, 945951, 1076427, 2837853, 3468487, 10405461, 31216383]

約数ペア:

[(1, 31216383), (3, 10405461), (9, 3468487), (11, 2837853), (29, 1076427), (33, 945951), (83, 376101), (87, 358809), (99, 315317), (131, 238293), (249, 125367), (261, 119603), (319, 97857), (393, 79431), (747, 41789), (913, 34191), (957, 32619), (1179, 26477), (1441, 21663), (2407, 12969), (2739, 11397), (2871, 10873), (3799, 8217), (4323, 7221)]