28876239

素因数分解:

$3^2\times 7^2\times {\mathrm{65479}}^1$

素因数の和:65499

約数の個数: 18

約数和(自身を含む): 48520680

約数和(自身を除く): 19644441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 65479, 196437, 458353, 589311, 1375059, 3208471, 4125177, 9625413, 28876239]

約数ペア:

[(1, 28876239), (3, 9625413), (7, 4125177), (9, 3208471), (21, 1375059), (49, 589311), (63, 458353), (147, 196437), (441, 65479)]