20564901

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2053}}^1$

素因数の和:2122

約数の個数: 32

約数和(自身を含む): 35493120

約数和(自身を除く): 14928219

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 159, 189, 371, 477, 1113, 1431, 2053, 3339, 6159, 10017, 14371, 18477, 43113, 55431, 108809, 129339, 326427, 388017, 761663, 979281, 2284989, 2937843, 6854967, 20564901]

約数ペア:

[(1, 20564901), (3, 6854967), (7, 2937843), (9, 2284989), (21, 979281), (27, 761663), (53, 388017), (63, 326427), (159, 129339), (189, 108809), (371, 55431), (477, 43113), (1113, 18477), (1431, 14371), (2053, 10017), (3339, 6159)]