21993004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{5153}}^1$

素因数の和:5265

約数の個数: 24

約数和(自身を含む): 42427728

約数和(自身を除く): 20434724

約数列:

[1, 2, 4, 11, 22, 44, 97, 194, 388, 1067, 2134, 4268, 5153, 10306, 20612, 56683, 113366, 226732, 499841, 999682, 1999364, 5498251, 10996502, 21993004]

約数ペア:

[(1, 21993004), (2, 10996502), (4, 5498251), (11, 1999364), (22, 999682), (44, 499841), (97, 226732), (194, 113366), (388, 56683), (1067, 20612), (2134, 10306), (4268, 5153)]