21854853

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{11731}}^1$

素因数の和:11766

約数の個数: 20

約数和(自身を含む): 34069728

約数和(自身を除く): 12214875

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 11731, 35193, 105579, 269813, 316737, 809439, 950211, 2428317, 7284951, 21854853]

約数ペア:

[(1, 21854853), (3, 7284951), (9, 2428317), (23, 950211), (27, 809439), (69, 316737), (81, 269813), (207, 105579), (621, 35193), (1863, 11731)]