270459

素因数分解:

$3^6\times 7^1\times {\mathrm{53}}^1$

素因数の和:78

約数の個数: 28

約数和(自身を含む): 472176

約数和(自身を除く): 201717

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 243, 371, 477, 567, 729, 1113, 1431, 1701, 3339, 4293, 5103, 10017, 12879, 30051, 38637, 90153, 270459]

約数ペア:

[(1, 270459), (3, 90153), (7, 38637), (9, 30051), (21, 12879), (27, 10017), (53, 5103), (63, 4293), (81, 3339), (159, 1701), (189, 1431), (243, 1113), (371, 729), (477, 567)]