287900001

素因数分解:

$3^4\times {\mathrm{347}}^1\times {\mathrm{10243}}^1$

素因数の和:10602

約数の個数: 20

約数和(自身を含む): 431354352

約数和(自身を除く): 143454351

約数列:

[1, 3, 9, 27, 81, 347, 1041, 3123, 9369, 10243, 28107, 30729, 92187, 276561, 829683, 3554321, 10662963, 31988889, 95966667, 287900001]

約数ペア:

[(1, 287900001), (3, 95966667), (9, 31988889), (27, 10662963), (81, 3554321), (347, 829683), (1041, 276561), (3123, 92187), (9369, 30729), (10243, 28107)]