21423824

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18859}}^1$

素因数の和:18938

約数の個数: 20

約数和(自身を含む): 42095520

約数和(自身を除く): 20671696

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18859, 37718, 75436, 150872, 301744, 1338989, 2677978, 5355956, 10711912, 21423824]

約数ペア:

[(1, 21423824), (2, 10711912), (4, 5355956), (8, 2677978), (16, 1338989), (71, 301744), (142, 150872), (284, 75436), (568, 37718), (1136, 18859)]