19704784

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{111959}}^1$

素因数の和:111978

約数の個数: 20

約数和(自身を含む): 41649120

約数和(自身を除く): 21944336

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 111959, 223918, 447836, 895672, 1231549, 1791344, 2463098, 4926196, 9852392, 19704784]

約数ペア:

[(1, 19704784), (2, 9852392), (4, 4926196), (8, 2463098), (11, 1791344), (16, 1231549), (22, 895672), (44, 447836), (88, 223918), (176, 111959)]