18107691

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{21031}}^1$

素因数の和:21082

約数の個数: 16

約数和(自身を含む): 28267008

約数和(自身を除く): 10159317

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 21031, 63093, 147217, 441651, 862271, 2586813, 6035897, 18107691]

約数ペア:

[(1, 18107691), (3, 6035897), (7, 2586813), (21, 862271), (41, 441651), (123, 147217), (287, 63093), (861, 21031)]