427491

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:303

約数の個数: 16

約数和(自身を含む): 645120

約数和(自身を除く): 217629

約数列:

[1, 3, 9, 27, 71, 213, 223, 639, 669, 1917, 2007, 6021, 15833, 47499, 142497, 427491]

約数ペア:

[(1, 427491), (3, 142497), (9, 47499), (27, 15833), (71, 6021), (213, 2007), (223, 1917), (639, 669)]