258903

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:275

約数の個数: 16

約数和(自身を含む): 394240

約数和(自身を除く): 135337

約数列:

[1, 3, 9, 27, 43, 129, 223, 387, 669, 1161, 2007, 6021, 9589, 28767, 86301, 258903]

約数ペア:

[(1, 258903), (3, 86301), (9, 28767), (27, 9589), (43, 6021), (129, 2007), (223, 1161), (387, 669)]