21782384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104723}}^1$

素因数の和:104744

約数の個数: 20

約数和(自身を含む): 45450216

約数和(自身を除く): 23667832

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104723, 209446, 418892, 837784, 1361399, 1675568, 2722798, 5445596, 10891192, 21782384]

約数ペア:

[(1, 21782384), (2, 10891192), (4, 5445596), (8, 2722798), (13, 1675568), (16, 1361399), (26, 837784), (52, 418892), (104, 209446), (208, 104723)]