20766824

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{857}}^1$

素因数の和:1109

約数の個数: 32

約数和(自身を含む): 42162120

約数和(自身を除く): 21395296

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 233, 466, 857, 932, 1714, 1864, 3029, 3428, 6058, 6856, 11141, 12116, 22282, 24232, 44564, 89128, 199681, 399362, 798724, 1597448, 2595853, 5191706, 10383412, 20766824]

約数ペア:

[(1, 20766824), (2, 10383412), (4, 5191706), (8, 2595853), (13, 1597448), (26, 798724), (52, 399362), (104, 199681), (233, 89128), (466, 44564), (857, 24232), (932, 22282), (1714, 12116), (1864, 11141), (3029, 6856), (3428, 6058)]