20788049709

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{691759}}^1$

素因数の和:691831

約数の個数: 40

約数和(自身を含む): 36159678720

約数和(自身を除く): 15371629011

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 567, 1113, 1431, 3339, 4293, 10017, 30051, 691759, 2075277, 4842313, 6225831, 14526939, 18677493, 36663227, 43580817, 56032479, 109989681, 130742451, 256642589, 329969043, 392227353, 769927767, 989907129, 2309783301, 2969721387, 6929349903, 20788049709]

約数ペア:

[(1, 20788049709), (3, 6929349903), (7, 2969721387), (9, 2309783301), (21, 989907129), (27, 769927767), (53, 392227353), (63, 329969043), (81, 256642589), (159, 130742451), (189, 109989681), (371, 56032479), (477, 43580817), (567, 36663227), (1113, 18677493), (1431, 14526939), (3339, 6225831), (4293, 4842313), (10017, 2075277), (30051, 691759)]