21191994

素因数分解:

$2^1\times 3^2\times {\mathrm{643}}^1\times {\mathrm{1831}}^1$

素因数の和:2482

約数の個数: 24

約数和(自身を含む): 46012512

約数和(自身を除く): 24820518

約数列:

[1, 2, 3, 6, 9, 18, 643, 1286, 1831, 1929, 3662, 3858, 5493, 5787, 10986, 11574, 16479, 32958, 1177333, 2354666, 3531999, 7063998, 10595997, 21191994]

約数ペア:

[(1, 21191994), (2, 10595997), (3, 7063998), (6, 3531999), (9, 2354666), (18, 1177333), (643, 32958), (1286, 16479), (1831, 11574), (1929, 10986), (3662, 5787), (3858, 5493)]