21641391

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47149}}^1$

素因数の和:47175

約数の個数: 16

約数和(自身を含む): 33948000

約数和(自身を除く): 12306609

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47149, 141447, 424341, 801533, 1273023, 2404599, 7213797, 21641391]

約数ペア:

[(1, 21641391), (3, 7213797), (9, 2404599), (17, 1273023), (27, 801533), (51, 424341), (153, 141447), (459, 47149)]