21330728

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{86011}}^1$

素因数の和:86048

約数の個数: 16

約数和(自身を含む): 41285760

約数和(自身を除く): 19955032

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 86011, 172022, 344044, 688088, 2666341, 5332682, 10665364, 21330728]

約数ペア:

[(1, 21330728), (2, 10665364), (4, 5332682), (8, 2666341), (31, 688088), (62, 344044), (124, 172022), (248, 86011)]