21894759

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47701}}^1$

素因数の和:47727

約数の個数: 16

約数和(自身を含む): 34345440

約数和(自身を除く): 12450681

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47701, 143103, 429309, 810917, 1287927, 2432751, 7298253, 21894759]

約数ペア:

[(1, 21894759), (3, 7298253), (9, 2432751), (17, 1287927), (27, 810917), (51, 429309), (153, 143103), (459, 47701)]