218974768

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{333803}}^1$

素因数の和:333852

約数の個数: 20

約数和(自身を含む): 434612808

約数和(自身を除く): 215638040

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 333803, 667606, 1335212, 2670424, 5340848, 13685923, 27371846, 54743692, 109487384, 218974768]

約数ペア:

[(1, 218974768), (2, 109487384), (4, 54743692), (8, 27371846), (16, 13685923), (41, 5340848), (82, 2670424), (164, 1335212), (328, 667606), (656, 333803)]