81128146

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{18719}}^1$

素因数の和:18929

約数の個数: 16

約数和(自身を含む): 133436160

約数和(自身を除く): 52308014

約数列:

[1, 2, 11, 22, 197, 394, 2167, 4334, 18719, 37438, 205909, 411818, 3687643, 7375286, 40564073, 81128146]

約数ペア:

[(1, 81128146), (2, 40564073), (11, 7375286), (22, 3687643), (197, 411818), (394, 205909), (2167, 37438), (4334, 18719)]