20998451

素因数分解:

${\mathrm{17}}^2\times {\mathrm{113}}^1\times {\mathrm{643}}^1$

素因数の和:790

約数の個数: 12

約数和(自身を含む): 22538712

約数和(自身を除く): 1540261

約数列:

[1, 17, 113, 289, 643, 1921, 10931, 32657, 72659, 185827, 1235203, 20998451]

約数ペア:

[(1, 20998451), (17, 1235203), (113, 185827), (289, 72659), (643, 32657), (1921, 10931)]