28313943

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 47282688

約数和(自身を除く): 18968745

約数列:

[1, 3, 7, 21, 23, 31, 61, 69, 93, 161, 183, 217, 427, 483, 651, 713, 961, 1281, 1403, 1891, 2139, 2883, 4209, 4991, 5673, 6727, 9821, 13237, 14973, 20181, 22103, 29463, 39711, 43493, 58621, 66309, 130479, 154721, 175863, 304451, 410347, 464163, 913353, 1231041, 1348283, 4044849, 9437981, 28313943]

約数ペア:

[(1, 28313943), (3, 9437981), (7, 4044849), (21, 1348283), (23, 1231041), (31, 913353), (61, 464163), (69, 410347), (93, 304451), (161, 175863), (183, 154721), (217, 130479), (427, 66309), (483, 58621), (651, 43493), (713, 39711), (961, 29463), (1281, 22103), (1403, 20181), (1891, 14973), (2139, 13237), (2883, 9821), (4209, 6727), (4991, 5673)]