28070469

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1597}}^1$

素因数の和:1647

約数の個数: 40

約数和(自身を含む): 49499648

約数和(自身を除く): 21429179

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 279, 567, 651, 837, 1597, 1953, 2511, 4791, 5859, 11179, 14373, 17577, 33537, 43119, 49507, 100611, 129357, 148521, 301833, 346549, 445563, 905499, 1039647, 1336689, 3118941, 4010067, 9356823, 28070469]

約数ペア:

[(1, 28070469), (3, 9356823), (7, 4010067), (9, 3118941), (21, 1336689), (27, 1039647), (31, 905499), (63, 445563), (81, 346549), (93, 301833), (189, 148521), (217, 129357), (279, 100611), (567, 49507), (651, 43119), (837, 33537), (1597, 17577), (1953, 14373), (2511, 11179), (4791, 5859)]