12889785

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20959}}^1$

素因数の和:21008

約数の個数: 16

約数和(自身を含む): 21127680

約数和(自身を除く): 8237895

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 20959, 62877, 104795, 314385, 859319, 2577957, 4296595, 12889785]

約数ペア:

[(1, 12889785), (3, 4296595), (5, 2577957), (15, 859319), (41, 314385), (123, 104795), (205, 62877), (615, 20959)]