20837747

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{4463}}^1$

素因数の和:4522

約数の個数: 16

約数和(自身を含む): 25712640

約数和(自身を除く): 4874893

約数列:

[1, 7, 23, 29, 161, 203, 667, 4463, 4669, 31241, 102649, 129427, 718543, 905989, 2976821, 20837747]

約数ペア:

[(1, 20837747), (7, 2976821), (23, 905989), (29, 718543), (161, 129427), (203, 102649), (667, 31241), (4463, 4669)]