71587383

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^3\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 118851840

約数和(自身を除く): 47264457

約数列:

[1, 3, 7, 19, 21, 49, 57, 71, 133, 147, 213, 361, 399, 497, 931, 1083, 1349, 1491, 2527, 2793, 3479, 4047, 6859, 7581, 9443, 10437, 17689, 20577, 25631, 28329, 48013, 53067, 66101, 76893, 144039, 179417, 198303, 336091, 486989, 538251, 1008273, 1255919, 1460967, 3408923, 3767757, 10226769, 23862461, 71587383]

約数ペア:

[(1, 71587383), (3, 23862461), (7, 10226769), (19, 3767757), (21, 3408923), (49, 1460967), (57, 1255919), (71, 1008273), (133, 538251), (147, 486989), (213, 336091), (361, 198303), (399, 179417), (497, 144039), (931, 76893), (1083, 66101), (1349, 53067), (1491, 48013), (2527, 28329), (2793, 25631), (3479, 20577), (4047, 17689), (6859, 10437), (7581, 9443)]