21336944

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31013}}^1$

素因数の和:31064

約数の個数: 20

約数和(自身を含む): 42303096

約数和(自身を除く): 20966152

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31013, 62026, 124052, 248104, 496208, 1333559, 2667118, 5334236, 10668472, 21336944]

約数ペア:

[(1, 21336944), (2, 10668472), (4, 5334236), (8, 2667118), (16, 1333559), (43, 496208), (86, 248104), (172, 124052), (344, 62026), (688, 31013)]