12840585

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20879}}^1$

素因数の和:20928

約数の個数: 16

約数和(自身を含む): 21047040

約数和(自身を除く): 8206455

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 20879, 62637, 104395, 313185, 856039, 2568117, 4280195, 12840585]

約数ペア:

[(1, 12840585), (3, 4280195), (5, 2568117), (15, 856039), (41, 313185), (123, 104395), (205, 62637), (615, 20879)]