51508143

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 80800896

約数和(自身を除く): 29292753

約数列:

[1, 3, 9, 27, 31, 73, 81, 93, 219, 279, 281, 657, 837, 843, 1971, 2263, 2511, 2529, 5913, 6789, 7587, 8711, 20367, 20513, 22761, 26133, 61101, 61539, 78399, 183303, 184617, 235197, 553851, 635903, 705591, 1661553, 1907709, 5723127, 17169381, 51508143]

約数ペア:

[(1, 51508143), (3, 17169381), (9, 5723127), (27, 1907709), (31, 1661553), (73, 705591), (81, 635903), (93, 553851), (219, 235197), (279, 184617), (281, 183303), (657, 78399), (837, 61539), (843, 61101), (1971, 26133), (2263, 22761), (2511, 20513), (2529, 20367), (5913, 8711), (6789, 7587)]