28013706

素因数分解:

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

素因数の和:1235

約数の個数: 48

約数和(自身を含む): 69748224

約数和(自身を除く): 41734518

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 223, 446, 669, 997, 1338, 1561, 1994, 2007, 2991, 3122, 4014, 4683, 5982, 6979, 8973, 9366, 13958, 14049, 17946, 20937, 28098, 41874, 62811, 125622, 222331, 444662, 666993, 1333986, 1556317, 2000979, 3112634, 4001958, 4668951, 9337902, 14006853, 28013706]

約数ペア:

[(1, 28013706), (2, 14006853), (3, 9337902), (6, 4668951), (7, 4001958), (9, 3112634), (14, 2000979), (18, 1556317), (21, 1333986), (42, 666993), (63, 444662), (126, 222331), (223, 125622), (446, 62811), (669, 41874), (997, 28098), (1338, 20937), (1561, 17946), (1994, 14049), (2007, 13958), (2991, 9366), (3122, 8973), (4014, 6979), (4683, 5982)]