28263027

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{907}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 43932672

約数和(自身を除く): 15669645

約数列:

[1, 3, 13, 17, 39, 47, 51, 141, 221, 611, 663, 799, 907, 1833, 2397, 2721, 10387, 11791, 15419, 31161, 35373, 42629, 46257, 127887, 200447, 554177, 601341, 724693, 1662531, 2174079, 9421009, 28263027]

約数ペア:

[(1, 28263027), (3, 9421009), (13, 2174079), (17, 1662531), (39, 724693), (47, 601341), (51, 554177), (141, 200447), (221, 127887), (611, 46257), (663, 42629), (799, 35373), (907, 31161), (1833, 15419), (2397, 11791), (2721, 10387)]