20783972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6653}}^1$

素因数の和:6739

約数の個数: 24

約数和(自身を含む): 40243392

約数和(自身を除く): 19459420

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6653, 13306, 26612, 73183, 146366, 292732, 472363, 944726, 1889452, 5195993, 10391986, 20783972]

約数ペア:

[(1, 20783972), (2, 10391986), (4, 5195993), (11, 1889452), (22, 944726), (44, 472363), (71, 292732), (142, 146366), (284, 73183), (781, 26612), (1562, 13306), (3124, 6653)]