19744191

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7591}}^1$

素因数の和:7631

約数の個数: 18

約数和(自身を含む): 30299672

約数和(自身を除く): 10555481

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7591, 22773, 68319, 129047, 387141, 1161423, 2193799, 6581397, 19744191]

約数ペア:

[(1, 19744191), (3, 6581397), (9, 2193799), (17, 1161423), (51, 387141), (153, 129047), (289, 68319), (867, 22773), (2601, 7591)]