20682398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21863}}^1$

素因数の和:21919

約数の個数: 16

約数和(自身を含む): 34632576

約数和(自身を除く): 13950178

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 21863, 43726, 240493, 480986, 940109, 1880218, 10341199, 20682398]

約数ペア:

[(1, 20682398), (2, 10341199), (11, 1880218), (22, 940109), (43, 480986), (86, 240493), (473, 43726), (946, 21863)]