18131994

素因数分解:

$2^1\times 3^2\times {\mathrm{139}}^1\times {\mathrm{7247}}^1$

素因数の和:7394

約数の個数: 24

約数和(自身を含む): 39574080

約数和(自身を除く): 21442086

約数列:

[1, 2, 3, 6, 9, 18, 139, 278, 417, 834, 1251, 2502, 7247, 14494, 21741, 43482, 65223, 130446, 1007333, 2014666, 3021999, 6043998, 9065997, 18131994]

約数ペア:

[(1, 18131994), (2, 9065997), (3, 6043998), (6, 3021999), (9, 2014666), (18, 1007333), (139, 130446), (278, 65223), (417, 43482), (834, 21741), (1251, 14494), (2502, 7247)]