12781905

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37049}}^1$

素因数の和:37080

約数の個数: 16

約数和(自身を含む): 21340800

約数和(自身を除く): 8558895

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 37049, 111147, 185245, 555735, 852127, 2556381, 4260635, 12781905]

約数ペア:

[(1, 12781905), (3, 4260635), (5, 2556381), (15, 852127), (23, 555735), (69, 185245), (115, 111147), (345, 37049)]