20663307

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4493}}^1$

素因数の和:4579

約数の個数: 24

約数和(自身を含む): 34585824

約数和(自身を除く): 13922517

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4493, 4599, 13479, 31451, 40437, 94353, 283059, 327989, 983967, 2295923, 2951901, 6887769, 20663307]

約数ペア:

[(1, 20663307), (3, 6887769), (7, 2951901), (9, 2295923), (21, 983967), (63, 327989), (73, 283059), (219, 94353), (511, 40437), (657, 31451), (1533, 13479), (4493, 4599)]