689100291

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{26669}}^1$

素因数の和:26721

約数の個数: 40

約数和(自身を含む): 1161745200

約数和(自身を除く): 472644909

約数列:

[1, 3, 9, 11, 27, 29, 33, 81, 87, 99, 261, 297, 319, 783, 891, 957, 2349, 2871, 8613, 25839, 26669, 80007, 240021, 293359, 720063, 773401, 880077, 2160189, 2320203, 2640231, 6960609, 7920693, 8507411, 20881827, 23762079, 25522233, 62645481, 76566699, 229700097, 689100291]

約数ペア:

[(1, 689100291), (3, 229700097), (9, 76566699), (11, 62645481), (27, 25522233), (29, 23762079), (33, 20881827), (81, 8507411), (87, 7920693), (99, 6960609), (261, 2640231), (297, 2320203), (319, 2160189), (783, 880077), (891, 773401), (957, 720063), (2349, 293359), (2871, 240021), (8613, 80007), (25839, 26669)]