20425581

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{709}}^1$

素因数の和:826

約数の個数: 32

約数和(自身を含む): 33398400

約数和(自身を除く): 12972819

約数列:

[1, 3, 9, 11, 27, 33, 97, 99, 291, 297, 709, 873, 1067, 2127, 2619, 3201, 6381, 7799, 9603, 19143, 23397, 28809, 68773, 70191, 206319, 210573, 618957, 756503, 1856871, 2269509, 6808527, 20425581]

約数ペア:

[(1, 20425581), (3, 6808527), (9, 2269509), (11, 1856871), (27, 756503), (33, 618957), (97, 210573), (99, 206319), (291, 70191), (297, 68773), (709, 28809), (873, 23397), (1067, 19143), (2127, 9603), (2619, 7799), (3201, 6381)]