81432261

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{18353}}^1$

素因数の和:18405

約数の個数: 24

約数和(自身を含む): 128845080

約数和(自身を除く): 47412819

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 493, 1479, 4437, 18353, 55059, 165177, 312001, 532237, 936003, 1596711, 2808009, 4790133, 9048029, 27144087, 81432261]

約数ペア:

[(1, 81432261), (3, 27144087), (9, 9048029), (17, 4790133), (29, 2808009), (51, 1596711), (87, 936003), (153, 532237), (261, 312001), (493, 165177), (1479, 55059), (4437, 18353)]