18648711

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{467}}^1$

素因数の和:525

約数の個数: 40

約数和(自身を含む): 30579120

約数和(自身を除く): 11930409

約数列:

[1, 3, 9, 17, 27, 29, 51, 81, 87, 153, 261, 459, 467, 493, 783, 1377, 1401, 1479, 2349, 4203, 4437, 7939, 12609, 13311, 13543, 23817, 37827, 39933, 40629, 71451, 121887, 214353, 230231, 365661, 643059, 690693, 1096983, 2072079, 6216237, 18648711]

約数ペア:

[(1, 18648711), (3, 6216237), (9, 2072079), (17, 1096983), (27, 690693), (29, 643059), (51, 365661), (81, 230231), (87, 214353), (153, 121887), (261, 71451), (459, 40629), (467, 39933), (493, 37827), (783, 23817), (1377, 13543), (1401, 13311), (1479, 12609), (2349, 7939), (4203, 4437)]