31915989

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{3989}}^1$

素因数の和:4129

約数の個数: 24

約数和(自身を含む): 53114880

約数和(自身を除く): 21198891

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 3989, 8001, 11967, 27923, 35901, 83769, 251307, 506603, 1519809, 3546221, 4559427, 10638663, 31915989]

約数ペア:

[(1, 31915989), (3, 10638663), (7, 4559427), (9, 3546221), (21, 1519809), (63, 506603), (127, 251307), (381, 83769), (889, 35901), (1143, 27923), (2667, 11967), (3989, 8001)]