20717641

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{593}}^1$

素因数の和:661

約数の個数: 24

約数和(自身を含む): 26002944

約数和(自身を除く): 5285303

約数列:

[1, 7, 23, 31, 49, 161, 217, 593, 713, 1127, 1519, 4151, 4991, 13639, 18383, 29057, 34937, 95473, 128681, 422809, 668311, 900767, 2959663, 20717641]

約数ペア:

[(1, 20717641), (7, 2959663), (23, 900767), (31, 668311), (49, 422809), (161, 128681), (217, 95473), (593, 34937), (713, 29057), (1127, 18383), (1519, 13639), (4151, 4991)]