17966487

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 31256064

約数和(自身を除く): 13289577

約数列:

[1, 3, 7, 11, 21, 33, 41, 49, 77, 123, 147, 231, 271, 287, 451, 539, 813, 861, 1353, 1617, 1897, 2009, 2981, 3157, 5691, 6027, 8943, 9471, 11111, 13279, 20867, 22099, 33333, 39837, 62601, 66297, 77777, 122221, 146069, 233331, 366663, 438207, 544439, 855547, 1633317, 2566641, 5988829, 17966487]

約数ペア:

[(1, 17966487), (3, 5988829), (7, 2566641), (11, 1633317), (21, 855547), (33, 544439), (41, 438207), (49, 366663), (77, 233331), (123, 146069), (147, 122221), (231, 77777), (271, 66297), (287, 62601), (451, 39837), (539, 33333), (813, 22099), (861, 20867), (1353, 13279), (1617, 11111), (1897, 9471), (2009, 8943), (2981, 6027), (3157, 5691)]