21038468

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20789}}^1$

素因数の和:20827

約数の個数: 24

約数和(自身を含む): 41912640

約数和(自身を除く): 20874172

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20789, 41578, 83156, 228679, 457358, 478147, 914716, 956294, 1912588, 5259617, 10519234, 21038468]

約数ペア:

[(1, 21038468), (2, 10519234), (4, 5259617), (11, 1912588), (22, 956294), (23, 914716), (44, 478147), (46, 457358), (92, 228679), (253, 83156), (506, 41578), (1012, 20789)]