20842297

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:461

約数の個数: 24

約数和(自身を含む): 26010240

約数和(自身を除く): 5167943

約数列:

[1, 7, 19, 49, 61, 133, 367, 427, 931, 1159, 2569, 2989, 6973, 8113, 17983, 22387, 48811, 56791, 156709, 341677, 425353, 1096963, 2977471, 20842297]

約数ペア:

[(1, 20842297), (7, 2977471), (19, 1096963), (49, 425353), (61, 341677), (133, 156709), (367, 56791), (427, 48811), (931, 22387), (1159, 17983), (2569, 8113), (2989, 6973)]