256839543

素因数分解:

$3^2\times {\mathrm{181}}^1\times {\mathrm{157667}}^1$

素因数の和:157854

約数の個数: 12

約数和(自身を含む): 373042488

約数和(自身を除く): 116202945

約数列:

[1, 3, 9, 181, 543, 1629, 157667, 473001, 1419003, 28537727, 85613181, 256839543]

約数ペア:

[(1, 256839543), (3, 85613181), (9, 28537727), (181, 1419003), (543, 473001), (1629, 157667)]