20406957

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{3049}}^1$

素因数の和:3172

約数の個数: 16

約数和(自身を含む): 28694400

約数和(自身を除く): 8287443

約数列:

[1, 3, 23, 69, 97, 291, 2231, 3049, 6693, 9147, 70127, 210381, 295753, 887259, 6802319, 20406957]

約数ペア:

[(1, 20406957), (3, 6802319), (23, 887259), (69, 295753), (97, 210381), (291, 70127), (2231, 9147), (3049, 6693)]