28298727

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{20551}}^1$

素因数の和:20580

約数の個数: 20

約数和(自身を含む): 44762256

約数和(自身を除く): 16463529

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 20551, 61653, 184959, 349367, 554877, 1048101, 1664631, 3144303, 9432909, 28298727]

約数ペア:

[(1, 28298727), (3, 9432909), (9, 3144303), (17, 1664631), (27, 1048101), (51, 554877), (81, 349367), (153, 184959), (459, 61653), (1377, 20551)]