31381889

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{13147}}^1$

素因数の和:13196

約数の個数: 16

約数和(自身を含む): 40390656

約数和(自身を除く): 9008767

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 13147, 92029, 144617, 407557, 1012319, 2852899, 4483127, 31381889]

約数ペア:

[(1, 31381889), (7, 4483127), (11, 2852899), (31, 1012319), (77, 407557), (217, 144617), (341, 92029), (2387, 13147)]