20779551

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1117}}^1$

素因数の和:1192

約数の個数: 32

約数和(自身を含む): 33808320

約数和(自身を除く): 13028769

約数列:

[1, 3, 9, 13, 27, 39, 53, 117, 159, 351, 477, 689, 1117, 1431, 2067, 3351, 6201, 10053, 14521, 18603, 30159, 43563, 59201, 130689, 177603, 392067, 532809, 769613, 1598427, 2308839, 6926517, 20779551]

約数ペア:

[(1, 20779551), (3, 6926517), (9, 2308839), (13, 1598427), (27, 769613), (39, 532809), (53, 392067), (117, 177603), (159, 130689), (351, 59201), (477, 43563), (689, 30159), (1117, 18603), (1431, 14521), (2067, 10053), (3351, 6201)]