12986778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 31212288

約数和(自身を除く): 18225510

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 61, 74, 111, 122, 137, 183, 222, 259, 274, 366, 411, 427, 518, 777, 822, 854, 959, 1281, 1554, 1918, 2257, 2562, 2877, 4514, 5069, 5754, 6771, 8357, 10138, 13542, 15207, 15799, 16714, 25071, 30414, 31598, 35483, 47397, 50142, 58499, 70966, 94794, 106449, 116998, 175497, 212898, 309209, 350994, 618418, 927627, 1855254, 2164463, 4328926, 6493389, 12986778]

約数ペア:

[(1, 12986778), (2, 6493389), (3, 4328926), (6, 2164463), (7, 1855254), (14, 927627), (21, 618418), (37, 350994), (42, 309209), (61, 212898), (74, 175497), (111, 116998), (122, 106449), (137, 94794), (183, 70966), (222, 58499), (259, 50142), (274, 47397), (366, 35483), (411, 31598), (427, 30414), (518, 25071), (777, 16714), (822, 15799), (854, 15207), (959, 13542), (1281, 10138), (1554, 8357), (1918, 6771), (2257, 5754), (2562, 5069), (2877, 4514)]