20526884

素因数分解:

$2^2\times 7^2\times {\mathrm{104729}}^1$

素因数の和:104747

約数の個数: 18

約数和(自身を含む): 41787270

約数和(自身を除く): 21260386

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 104729, 209458, 418916, 733103, 1466206, 2932412, 5131721, 10263442, 20526884]

約数ペア:

[(1, 20526884), (2, 10263442), (4, 5131721), (7, 2932412), (14, 1466206), (28, 733103), (49, 418916), (98, 209458), (196, 104729)]