19997276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{1031}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 37824864

約数和(自身を除く): 17827588

約数列:

[1, 2, 4, 13, 26, 52, 373, 746, 1031, 1492, 2062, 4124, 4849, 9698, 13403, 19396, 26806, 53612, 384563, 769126, 1538252, 4999319, 9998638, 19997276]

約数ペア:

[(1, 19997276), (2, 9998638), (4, 4999319), (13, 1538252), (26, 769126), (52, 384563), (373, 53612), (746, 26806), (1031, 19396), (1492, 13403), (2062, 9698), (4124, 4849)]