21127756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{1151}}^1$

素因数の和:1521

約数の個数: 24

約数和(自身を含む): 39965184

約数和(自身を除く): 18837428

約数列:

[1, 2, 4, 13, 26, 52, 353, 706, 1151, 1412, 2302, 4589, 4604, 9178, 14963, 18356, 29926, 59852, 406303, 812606, 1625212, 5281939, 10563878, 21127756]

約数ペア:

[(1, 21127756), (2, 10563878), (4, 5281939), (13, 1625212), (26, 812606), (52, 406303), (353, 59852), (706, 29926), (1151, 18356), (1412, 14963), (2302, 9178), (4589, 4604)]