20804948368

素因数分解:

$2^4\times {\mathrm{523}}^1\times {\mathrm{2486251}}^1$

素因数の和:2486782

約数の個数: 20

約数和(自身を含む): 40386677488

約数和(自身を除く): 19581729120

約数列:

[1, 2, 4, 8, 16, 523, 1046, 2092, 4184, 8368, 2486251, 4972502, 9945004, 19890008, 39780016, 1300309273, 2600618546, 5201237092, 10402474184, 20804948368]

約数ペア:

[(1, 20804948368), (2, 10402474184), (4, 5201237092), (8, 2600618546), (16, 1300309273), (523, 39780016), (1046, 19890008), (2092, 9945004), (4184, 4972502), (8368, 2486251)]