20687249

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 24562440

約数和(自身を除く): 3875191

約数列:

[1, 11, 17, 89, 113, 121, 187, 979, 1243, 1513, 1921, 2057, 10057, 10769, 13673, 16643, 21131, 110627, 170969, 183073, 232441, 1216897, 1880659, 20687249]

約数ペア:

[(1, 20687249), (11, 1880659), (17, 1216897), (89, 232441), (113, 183073), (121, 170969), (187, 110627), (979, 21131), (1243, 16643), (1513, 13673), (1921, 10769), (2057, 10057)]