19988568

素因数分解:

$2^3\times 3^2\times {\mathrm{73}}^1\times {\mathrm{3803}}^1$

素因数の和:3888

約数の個数: 48

約数和(自身を含む): 54891720

約数和(自身を除く): 34903152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 73, 146, 219, 292, 438, 584, 657, 876, 1314, 1752, 2628, 3803, 5256, 7606, 11409, 15212, 22818, 30424, 34227, 45636, 68454, 91272, 136908, 273816, 277619, 555238, 832857, 1110476, 1665714, 2220952, 2498571, 3331428, 4997142, 6662856, 9994284, 19988568]

約数ペア:

[(1, 19988568), (2, 9994284), (3, 6662856), (4, 4997142), (6, 3331428), (8, 2498571), (9, 2220952), (12, 1665714), (18, 1110476), (24, 832857), (36, 555238), (72, 277619), (73, 273816), (146, 136908), (219, 91272), (292, 68454), (438, 45636), (584, 34227), (657, 30424), (876, 22818), (1314, 15212), (1752, 11409), (2628, 7606), (3803, 5256)]