21425661

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{46679}}^1$

素因数の和:46705

約数の個数: 16

約数和(自身を含む): 33609600

約数和(自身を除く): 12183939

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 46679, 140037, 420111, 793543, 1260333, 2380629, 7141887, 21425661]

約数ペア:

[(1, 21425661), (3, 7141887), (9, 2380629), (17, 1260333), (27, 793543), (51, 420111), (153, 140037), (459, 46679)]