20804938

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2549}}^1$

素因数の和:2622

約数の個数: 32

約数和(自身を含む): 39657600

約数和(自身を除く): 18852662

約数列:

[1, 2, 7, 11, 14, 22, 53, 77, 106, 154, 371, 583, 742, 1166, 2549, 4081, 5098, 8162, 17843, 28039, 35686, 56078, 135097, 196273, 270194, 392546, 945679, 1486067, 1891358, 2972134, 10402469, 20804938]

約数ペア:

[(1, 20804938), (2, 10402469), (7, 2972134), (11, 1891358), (14, 1486067), (22, 945679), (53, 392546), (77, 270194), (106, 196273), (154, 135097), (371, 56078), (583, 35686), (742, 28039), (1166, 17843), (2549, 8162), (4081, 5098)]