21062991

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{2437}}^1$

素因数の和:2550

約数の個数: 16

約数和(自身を含む): 29177984

約数和(自身を除く): 8114993

約数列:

[1, 3, 43, 67, 129, 201, 2437, 2881, 7311, 8643, 104791, 163279, 314373, 489837, 7020997, 21062991]

約数ペア:

[(1, 21062991), (3, 7020997), (43, 489837), (67, 314373), (129, 163279), (201, 104791), (2437, 8643), (2881, 7311)]