20819324

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{9839}}^1$

素因数の和:9889

約数の個数: 18

約数和(自身を含む): 38090640

約数和(自身を除く): 17271316

約数列:

[1, 2, 4, 23, 46, 92, 529, 1058, 2116, 9839, 19678, 39356, 226297, 452594, 905188, 5204831, 10409662, 20819324]

約数ペア:

[(1, 20819324), (2, 10409662), (4, 5204831), (23, 905188), (46, 452594), (92, 226297), (529, 39356), (1058, 19678), (2116, 9839)]