20319926

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{2143}}^1$

素因数の和:2587

約数の個数: 16

約数和(自身を含む): 33343488

約数和(自身を除く): 13023562

約数列:

[1, 2, 11, 22, 431, 862, 2143, 4286, 4741, 9482, 23573, 47146, 923633, 1847266, 10159963, 20319926]

約数ペア:

[(1, 20319926), (2, 10159963), (11, 1847266), (22, 923633), (431, 47146), (862, 23573), (2143, 9482), (4286, 4741)]