20656647

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:620

約数の個数: 32

約数和(自身を含む): 33672960

約数和(自身を除く): 13016313

約数列:

[1, 3, 9, 11, 27, 33, 99, 157, 297, 443, 471, 1329, 1413, 1727, 3987, 4239, 4873, 5181, 11961, 14619, 15543, 43857, 46629, 69551, 131571, 208653, 625959, 765061, 1877877, 2295183, 6885549, 20656647]

約数ペア:

[(1, 20656647), (3, 6885549), (9, 2295183), (11, 1877877), (27, 765061), (33, 625959), (99, 208653), (157, 131571), (297, 69551), (443, 46629), (471, 43857), (1329, 15543), (1413, 14619), (1727, 11961), (3987, 5181), (4239, 4873)]