21240746

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{2399}}^1$

素因数の和:2653

約数の個数: 16

約数和(自身を含む): 33696000

約数和(自身を除く): 12455254

約数列:

[1, 2, 19, 38, 233, 466, 2399, 4427, 4798, 8854, 45581, 91162, 558967, 1117934, 10620373, 21240746]

約数ペア:

[(1, 21240746), (2, 10620373), (19, 1117934), (38, 558967), (233, 91162), (466, 45581), (2399, 8854), (4427, 4798)]