81217719

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{28289}}^1$

素因数の和:28335

約数の個数: 24

約数和(自身を含む): 132397200

約数和(自身を除く): 51179481

約数列:

[1, 3, 9, 11, 29, 33, 87, 99, 261, 319, 957, 2871, 28289, 84867, 254601, 311179, 820381, 933537, 2461143, 2800611, 7383429, 9024191, 27072573, 81217719]

約数ペア:

[(1, 81217719), (3, 27072573), (9, 9024191), (11, 7383429), (29, 2800611), (33, 2461143), (87, 933537), (99, 820381), (261, 311179), (319, 254601), (957, 84867), (2871, 28289)]