27987201

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:435

約数の個数: 40

約数和(自身を含む): 46208448

約数和(自身を除く): 18221247

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 101, 297, 303, 311, 891, 909, 933, 1111, 2727, 2799, 3333, 3421, 8181, 8397, 9999, 10263, 25191, 29997, 30789, 31411, 89991, 92367, 94233, 277101, 282699, 345521, 848097, 1036563, 2544291, 3109689, 9329067, 27987201]

約数ペア:

[(1, 27987201), (3, 9329067), (9, 3109689), (11, 2544291), (27, 1036563), (33, 848097), (81, 345521), (99, 282699), (101, 277101), (297, 94233), (303, 92367), (311, 89991), (891, 31411), (909, 30789), (933, 29997), (1111, 25191), (2727, 10263), (2799, 9999), (3333, 8397), (3421, 8181)]