218615007

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{307}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 342545280

約数和(自身を除く): 123930273

約数列:

[1, 3, 13, 19, 31, 39, 57, 93, 247, 307, 403, 589, 741, 921, 961, 1209, 1767, 2883, 3991, 5833, 7657, 9517, 11973, 12493, 17499, 18259, 22971, 28551, 37479, 54777, 75829, 123721, 180823, 227487, 237367, 295027, 371163, 542469, 712101, 885081, 2350699, 3835351, 5605513, 7052097, 11506053, 16816539, 72871669, 218615007]

約数ペア:

[(1, 218615007), (3, 72871669), (13, 16816539), (19, 11506053), (31, 7052097), (39, 5605513), (57, 3835351), (93, 2350699), (247, 885081), (307, 712101), (403, 542469), (589, 371163), (741, 295027), (921, 237367), (961, 227487), (1209, 180823), (1767, 123721), (2883, 75829), (3991, 54777), (5833, 37479), (7657, 28551), (9517, 22971), (11973, 18259), (12493, 17499)]