20828756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{2213}}^1$

素因数の和:2411

約数の個数: 24

約数和(自身を含む): 39488904

約数和(自身を除く): 18660148

約数列:

[1, 2, 4, 13, 26, 52, 181, 362, 724, 2213, 2353, 4426, 4706, 8852, 9412, 28769, 57538, 115076, 400553, 801106, 1602212, 5207189, 10414378, 20828756]

約数ペア:

[(1, 20828756), (2, 10414378), (4, 5207189), (13, 1602212), (26, 801106), (52, 400553), (181, 115076), (362, 57538), (724, 28769), (2213, 9412), (2353, 8852), (4426, 4706)]