21251494

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41999}}^1$

素因数の和:42035

約数の個数: 16

約数和(自身を含む): 36288000

約数和(自身を除く): 15036506

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 41999, 83998, 461989, 923978, 965977, 1931954, 10625747, 21251494]

約数ペア:

[(1, 21251494), (2, 10625747), (11, 1931954), (22, 965977), (23, 923978), (46, 461989), (253, 83998), (506, 41999)]