20884792

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{443}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 19394888

約数列:

[1, 2, 4, 8, 71, 83, 142, 166, 284, 332, 443, 568, 664, 886, 1772, 3544, 5893, 11786, 23572, 31453, 36769, 47144, 62906, 73538, 125812, 147076, 251624, 294152, 2610599, 5221198, 10442396, 20884792]

約数ペア:

[(1, 20884792), (2, 10442396), (4, 5221198), (8, 2610599), (71, 294152), (83, 251624), (142, 147076), (166, 125812), (284, 73538), (332, 62906), (443, 47144), (568, 36769), (664, 31453), (886, 23572), (1772, 11786), (3544, 5893)]