1290141

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{673}}^1$

素因数の和:753

約数の個数: 16

約数和(自身を含む): 1941120

約数和(自身を除く): 650979

約数列:

[1, 3, 9, 27, 71, 213, 639, 673, 1917, 2019, 6057, 18171, 47783, 143349, 430047, 1290141]

約数ペア:

[(1, 1290141), (3, 430047), (9, 143349), (27, 47783), (71, 18171), (213, 6057), (639, 2019), (673, 1917)]