13128405

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21347}}^1$

素因数の和:21396

約数の個数: 16

約数和(自身を含む): 21518784

約数和(自身を除く): 8390379

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 21347, 64041, 106735, 320205, 875227, 2625681, 4376135, 13128405]

約数ペア:

[(1, 13128405), (3, 4376135), (5, 2625681), (15, 875227), (41, 320205), (123, 106735), (205, 64041), (615, 21347)]