21707185

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{1301}}^1$

素因数の和:1424

約数の個数: 16

約数和(自身を含む): 26998272

約数和(自身を除く): 5291087

約数列:

[1, 5, 47, 71, 235, 355, 1301, 3337, 6505, 16685, 61147, 92371, 305735, 461855, 4341437, 21707185]

約数ペア:

[(1, 21707185), (5, 4341437), (47, 461855), (71, 305735), (235, 92371), (355, 61147), (1301, 16685), (3337, 6505)]