28508719257

素因数分解:

$3^4\times {\mathrm{1697}}^1\times {\mathrm{207401}}^1$

素因数の和:209110

約数の個数: 20

約数和(自身を含む): 42612400116

約数和(自身を除く): 14103680859

約数列:

[1, 3, 9, 27, 81, 1697, 5091, 15273, 45819, 137457, 207401, 622203, 1866609, 5599827, 16799481, 351959497, 1055878491, 3167635473, 9502906419, 28508719257]

約数ペア:

[(1, 28508719257), (3, 9502906419), (9, 3167635473), (27, 1055878491), (81, 351959497), (1697, 16799481), (5091, 5599827), (15273, 1866609), (45819, 622203), (137457, 207401)]