18675804

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{997}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 50075648

約数和(自身を除く): 31399844

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 223, 446, 669, 892, 997, 1338, 1561, 1994, 2676, 2991, 3122, 3988, 4683, 5982, 6244, 6979, 9366, 11964, 13958, 18732, 20937, 27916, 41874, 83748, 222331, 444662, 666993, 889324, 1333986, 1556317, 2667972, 3112634, 4668951, 6225268, 9337902, 18675804]

約数ペア:

[(1, 18675804), (2, 9337902), (3, 6225268), (4, 4668951), (6, 3112634), (7, 2667972), (12, 1556317), (14, 1333986), (21, 889324), (28, 666993), (42, 444662), (84, 222331), (223, 83748), (446, 41874), (669, 27916), (892, 20937), (997, 18732), (1338, 13958), (1561, 11964), (1994, 9366), (2676, 6979), (2991, 6244), (3122, 5982), (3988, 4683)]