21339328

素因数分解:

$2^6\times {\mathrm{333427}}^1$

素因数の和:333439

約数の個数: 14

約数和(自身を含む): 42345356

約数和(自身を除く): 21006028

約数列:

[1, 2, 4, 8, 16, 32, 64, 333427, 666854, 1333708, 2667416, 5334832, 10669664, 21339328]

約数ペア:

[(1, 21339328), (2, 10669664), (4, 5334832), (8, 2667416), (16, 1333708), (32, 666854), (64, 333427)]