18914818

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{523}}^1$

素因数の和:658

約数の個数: 24

約数和(自身を含む): 31069008

約数和(自身を除く): 12154190

約数列:

[1, 2, 13, 26, 107, 169, 214, 338, 523, 1046, 1391, 2782, 6799, 13598, 18083, 36166, 55961, 88387, 111922, 176774, 727493, 1454986, 9457409, 18914818]

約数ペア:

[(1, 18914818), (2, 9457409), (13, 1454986), (26, 727493), (107, 176774), (169, 111922), (214, 88387), (338, 55961), (523, 36166), (1046, 18083), (1391, 13598), (2782, 6799)]