20646824

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^2$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 44508960

約数和(自身を除く): 23862136

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 88, 92, 101, 184, 202, 253, 404, 506, 808, 1012, 1111, 2024, 2222, 2323, 4444, 4646, 8888, 9292, 10201, 18584, 20402, 25553, 40804, 51106, 81608, 102212, 112211, 204424, 224422, 234623, 448844, 469246, 897688, 938492, 1876984, 2580853, 5161706, 10323412, 20646824]

約数ペア:

[(1, 20646824), (2, 10323412), (4, 5161706), (8, 2580853), (11, 1876984), (22, 938492), (23, 897688), (44, 469246), (46, 448844), (88, 234623), (92, 224422), (101, 204424), (184, 112211), (202, 102212), (253, 81608), (404, 51106), (506, 40804), (808, 25553), (1012, 20402), (1111, 18584), (2024, 10201), (2222, 9292), (2323, 8888), (4444, 4646)]