21122181

素因数分解:

$3^3\times {\mathrm{809}}^1\times {\mathrm{967}}^1$

素因数の和:1785

約数の個数: 16

約数和(自身を含む): 31363200

約数和(自身を除く): 10241019

約数列:

[1, 3, 9, 27, 809, 967, 2427, 2901, 7281, 8703, 21843, 26109, 782303, 2346909, 7040727, 21122181]

約数ペア:

[(1, 21122181), (3, 7040727), (9, 2346909), (27, 782303), (809, 26109), (967, 21843), (2427, 8703), (2901, 7281)]