19970189

素因数分解:

${\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{1607}}^1$

素因数の和:1684

約数の個数: 12

約数和(自身を含む): 21720864

約数和(自身を除く): 1750675

約数列:

[1, 17, 43, 289, 731, 1607, 12427, 27319, 69101, 464423, 1174717, 19970189]

約数ペア:

[(1, 19970189), (17, 1174717), (43, 464423), (289, 69101), (731, 27319), (1607, 12427)]