66706717

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20147}}^1$

素因数の和:20208

約数の個数: 16

約数和(自身を含む): 85105152

約数和(自身を除く): 18398435

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 20147, 141029, 221617, 866321, 1551319, 6064247, 9529531, 66706717]

約数ペア:

[(1, 66706717), (7, 9529531), (11, 6064247), (43, 1551319), (77, 866321), (301, 221617), (473, 141029), (3311, 20147)]