19989585916

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{3557}}^1\times {\mathrm{34267}}^1$

素因数の和:37869

約数の個数: 24

約数和(自身を含む): 35846109936

約数和(自身を除く): 15856524020

約数列:

[1, 2, 4, 41, 82, 164, 3557, 7114, 14228, 34267, 68534, 137068, 145837, 291674, 583348, 1404947, 2809894, 5619788, 121887719, 243775438, 487550876, 4997396479, 9994792958, 19989585916]

約数ペア:

[(1, 19989585916), (2, 9994792958), (4, 4997396479), (41, 487550876), (82, 243775438), (164, 121887719), (3557, 5619788), (7114, 2809894), (14228, 1404947), (34267, 583348), (68534, 291674), (137068, 145837)]