19982864

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113539}}^1$

素因数の和:113558

約数の個数: 20

約数和(自身を含む): 42236880

約数和(自身を除く): 22254016

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 113539, 227078, 454156, 908312, 1248929, 1816624, 2497858, 4995716, 9991432, 19982864]

約数ペア:

[(1, 19982864), (2, 9991432), (4, 4995716), (8, 2497858), (11, 1816624), (16, 1248929), (22, 908312), (44, 454156), (88, 227078), (176, 113539)]