21897524

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{497671}}^1$

素因数の和:497686

約数の個数: 12

約数和(自身を含む): 41804448

約数和(自身を除く): 19906924

約数列:

[1, 2, 4, 11, 22, 44, 497671, 995342, 1990684, 5474381, 10948762, 21897524]

約数ペア:

[(1, 21897524), (2, 10948762), (4, 5474381), (11, 1990684), (22, 995342), (44, 497671)]