20120859

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1831}}^1$

素因数の和:1888

約数の個数: 32

約数和(自身を含む): 33415680

約数和(自身を除く): 13294821

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 297, 333, 407, 999, 1221, 1831, 3663, 5493, 10989, 16479, 20141, 49437, 60423, 67747, 181269, 203241, 543807, 609723, 745217, 1829169, 2235651, 6706953, 20120859]

約数ペア:

[(1, 20120859), (3, 6706953), (9, 2235651), (11, 1829169), (27, 745217), (33, 609723), (37, 543807), (99, 203241), (111, 181269), (297, 67747), (333, 60423), (407, 49437), (999, 20141), (1221, 16479), (1831, 10989), (3663, 5493)]