531009

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:357

約数の個数: 16

約数和(自身を含む): 800640

約数和(自身を除く): 269631

約数列:

[1, 3, 9, 27, 71, 213, 277, 639, 831, 1917, 2493, 7479, 19667, 59001, 177003, 531009]

約数ペア:

[(1, 531009), (3, 177003), (9, 59001), (27, 19667), (71, 7479), (213, 2493), (277, 1917), (639, 831)]