12345687

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 20317440

約数和(自身を除く): 7971753

約数列:

[1, 3, 9, 19, 23, 43, 57, 69, 73, 129, 171, 207, 219, 387, 437, 657, 817, 989, 1311, 1387, 1679, 2451, 2967, 3139, 3933, 4161, 5037, 7353, 8901, 9417, 12483, 15111, 18791, 28251, 31901, 56373, 59641, 72197, 95703, 169119, 178923, 216591, 287109, 536769, 649773, 1371743, 4115229, 12345687]

約数ペア:

[(1, 12345687), (3, 4115229), (9, 1371743), (19, 649773), (23, 536769), (43, 287109), (57, 216591), (69, 178923), (73, 169119), (129, 95703), (171, 72197), (207, 59641), (219, 56373), (387, 31901), (437, 28251), (657, 18791), (817, 15111), (989, 12483), (1311, 9417), (1387, 8901), (1679, 7353), (2451, 5037), (2967, 4161), (3139, 3933)]