3969441

素因数分解:

$3^2\times 7^2\times {\mathrm{9001}}^1$

素因数の和:9021

約数の個数: 18

約数和(自身を含む): 6670482

約数和(自身を除く): 2701041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 9001, 27003, 63007, 81009, 189021, 441049, 567063, 1323147, 3969441]

約数ペア:

[(1, 3969441), (3, 1323147), (7, 567063), (9, 441049), (21, 189021), (49, 81009), (63, 63007), (147, 27003), (441, 9001)]