20745853916

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{784283}}^1$

素因数の和:784693

約数の個数: 24

約数和(自身を含む): 38539715760

約数和(自身を除く): 17793861844

約数列:

[1, 2, 4, 17, 34, 68, 389, 778, 1556, 6613, 13226, 26452, 784283, 1568566, 3137132, 13332811, 26665622, 53331244, 305086087, 610172174, 1220344348, 5186463479, 10372926958, 20745853916]

約数ペア:

[(1, 20745853916), (2, 10372926958), (4, 5186463479), (17, 1220344348), (34, 610172174), (68, 305086087), (389, 53331244), (778, 26665622), (1556, 13332811), (6613, 3137132), (13226, 1568566), (26452, 784283)]