81809109

素因数分解:

$3^8\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:398

約数の個数: 36

約数和(自身を含む): 126397804

約数和(自身を除く): 44588695

約数列:

[1, 3, 9, 27, 37, 81, 111, 243, 333, 337, 729, 999, 1011, 2187, 2997, 3033, 6561, 8991, 9099, 12469, 26973, 27297, 37407, 80919, 81891, 112221, 242757, 245673, 336663, 737019, 1009989, 2211057, 3029967, 9089901, 27269703, 81809109]

約数ペア:

[(1, 81809109), (3, 27269703), (9, 9089901), (27, 3029967), (37, 2211057), (81, 1009989), (111, 737019), (243, 336663), (333, 245673), (337, 242757), (729, 112221), (999, 81891), (1011, 80919), (2187, 37407), (2997, 27297), (3033, 26973), (6561, 12469), (8991, 9099)]