71681571

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 124467840

約数和(自身を除く): 52786269

約数列:

[1, 3, 9, 13, 17, 27, 39, 41, 51, 117, 123, 153, 221, 293, 351, 369, 459, 533, 663, 697, 879, 1107, 1599, 1989, 2091, 2637, 3809, 4797, 4981, 5967, 6273, 7911, 9061, 11427, 12013, 14391, 14943, 18819, 27183, 34281, 36039, 44829, 64753, 81549, 102843, 108117, 134487, 156169, 194259, 204221, 244647, 324351, 468507, 582777, 612663, 1405521, 1748331, 1837989, 2654873, 4216563, 5513967, 7964619, 23893857, 71681571]

約数ペア:

[(1, 71681571), (3, 23893857), (9, 7964619), (13, 5513967), (17, 4216563), (27, 2654873), (39, 1837989), (41, 1748331), (51, 1405521), (117, 612663), (123, 582777), (153, 468507), (221, 324351), (293, 244647), (351, 204221), (369, 194259), (459, 156169), (533, 134487), (663, 108117), (697, 102843), (879, 81549), (1107, 64753), (1599, 44829), (1989, 36039), (2091, 34281), (2637, 27183), (3809, 18819), (4797, 14943), (4981, 14391), (5967, 12013), (6273, 11427), (7911, 9061)]