20905941

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24281}}^1$

素因数の和:24332

約数の個数: 16

約数和(自身を含む): 32635008

約数和(自身を除く): 11729067

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24281, 72843, 169967, 509901, 995521, 2986563, 6968647, 20905941]

約数ペア:

[(1, 20905941), (3, 6968647), (7, 2986563), (21, 995521), (41, 509901), (123, 169967), (287, 72843), (861, 24281)]