20485629

素因数分解:

$3^7\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:86

約数の個数: 64

約数和(自身を含む): 35424000

約数和(自身を除く): 14938371

約数列:

[1, 3, 9, 17, 19, 27, 29, 51, 57, 81, 87, 153, 171, 243, 261, 323, 459, 493, 513, 551, 729, 783, 969, 1377, 1479, 1539, 1653, 2187, 2349, 2907, 4131, 4437, 4617, 4959, 7047, 8721, 9367, 12393, 13311, 13851, 14877, 21141, 26163, 28101, 37179, 39933, 41553, 44631, 63423, 78489, 84303, 119799, 133893, 235467, 252909, 359397, 401679, 706401, 758727, 1078191, 1205037, 2276181, 6828543, 20485629]

約数ペア:

[(1, 20485629), (3, 6828543), (9, 2276181), (17, 1205037), (19, 1078191), (27, 758727), (29, 706401), (51, 401679), (57, 359397), (81, 252909), (87, 235467), (153, 133893), (171, 119799), (243, 84303), (261, 78489), (323, 63423), (459, 44631), (493, 41553), (513, 39933), (551, 37179), (729, 28101), (783, 26163), (969, 21141), (1377, 14877), (1479, 13851), (1539, 13311), (1653, 12393), (2187, 9367), (2349, 8721), (2907, 7047), (4131, 4959), (4437, 4617)]