20398928

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{115903}}^1$

素因数の和:115922

約数の個数: 20

約数和(自身を含む): 43116288

約数和(自身を除く): 22717360

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 115903, 231806, 463612, 927224, 1274933, 1854448, 2549866, 5099732, 10199464, 20398928]

約数ペア:

[(1, 20398928), (2, 10199464), (4, 5099732), (8, 2549866), (11, 1854448), (16, 1274933), (22, 927224), (44, 463612), (88, 231806), (176, 115903)]