20512197

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{3469}}^1$

素因数の和:3554

約数の個数: 20

約数和(自身を含む): 31070380

約数和(自身を除く): 10558183

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 3469, 5913, 10407, 31221, 93663, 253237, 280989, 759711, 2279133, 6837399, 20512197]

約数ペア:

[(1, 20512197), (3, 6837399), (9, 2279133), (27, 759711), (73, 280989), (81, 253237), (219, 93663), (657, 31221), (1971, 10407), (3469, 5913)]