20486864

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67391}}^1$

素因数の和:67418

約数の個数: 20

約数和(自身を含む): 41783040

約数和(自身を除く): 21296176

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 67391, 134782, 269564, 539128, 1078256, 1280429, 2560858, 5121716, 10243432, 20486864]

約数ペア:

[(1, 20486864), (2, 10243432), (4, 5121716), (8, 2560858), (16, 1280429), (19, 1078256), (38, 539128), (76, 269564), (152, 134782), (304, 67391)]