27857277

素因数分解:

$3^6\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:181

約数の個数: 56

約数和(自身を含む): 49106304

約数和(自身を除く): 21249027

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 103, 159, 189, 243, 309, 371, 477, 567, 721, 729, 927, 1113, 1431, 1701, 2163, 2781, 3339, 4293, 5103, 5459, 6489, 8343, 10017, 12879, 16377, 19467, 25029, 30051, 38213, 38637, 49131, 58401, 75087, 90153, 114639, 147393, 175203, 270459, 343917, 442179, 525609, 1031751, 1326537, 3095253, 3979611, 9285759, 27857277]

約数ペア:

[(1, 27857277), (3, 9285759), (7, 3979611), (9, 3095253), (21, 1326537), (27, 1031751), (53, 525609), (63, 442179), (81, 343917), (103, 270459), (159, 175203), (189, 147393), (243, 114639), (309, 90153), (371, 75087), (477, 58401), (567, 49131), (721, 38637), (729, 38213), (927, 30051), (1113, 25029), (1431, 19467), (1701, 16377), (2163, 12879), (2781, 10017), (3339, 8343), (4293, 6489), (5103, 5459)]