21180148

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20929}}^1$

素因数の和:20967

約数の個数: 24

約数和(自身を含む): 42194880

約数和(自身を除く): 21014732

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20929, 41858, 83716, 230219, 460438, 481367, 920876, 962734, 1925468, 5295037, 10590074, 21180148]

約数ペア:

[(1, 21180148), (2, 10590074), (4, 5295037), (11, 1925468), (22, 962734), (23, 920876), (44, 481367), (46, 460438), (92, 230219), (253, 83716), (506, 41858), (1012, 20929)]