491569449

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{7057}}^1$

素因数の和:7205

約数の個数: 32

約数和(自身を含む): 780558336

約数和(自身を除く): 288988887

約数列:

[1, 3, 7, 21, 31, 93, 107, 217, 321, 651, 749, 2247, 3317, 7057, 9951, 21171, 23219, 49399, 69657, 148197, 218767, 656301, 755099, 1531369, 2265297, 4594107, 5285693, 15857079, 23408069, 70224207, 163856483, 491569449]

約数ペア:

[(1, 491569449), (3, 163856483), (7, 70224207), (21, 23408069), (31, 15857079), (93, 5285693), (107, 4594107), (217, 2265297), (321, 1531369), (651, 755099), (749, 656301), (2247, 218767), (3317, 148197), (7057, 69657), (9951, 49399), (21171, 23219)]