20564621

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{6211}}^1$

素因数の和:6272

約数の個数: 16

約数和(自身を含む): 26239488

約数和(自身を除く): 5674867

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 6211, 43477, 68321, 267073, 478247, 1869511, 2937803, 20564621]

約数ペア:

[(1, 20564621), (7, 2937803), (11, 1869511), (43, 478247), (77, 267073), (301, 68321), (473, 43477), (3311, 6211)]