31118486

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{15991}}^1$

素因数の和:16139

約数の個数: 16

約数和(自身を含む): 53733120

約数和(自身を除く): 22614634

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 15991, 31982, 111937, 223874, 2222749, 4445498, 15559243, 31118486]

約数ペア:

[(1, 31118486), (2, 15559243), (7, 4445498), (14, 2222749), (139, 223874), (278, 111937), (973, 31982), (1946, 15991)]