20309456

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{11863}}^1$

素因数の和:11978

約数の個数: 20

約数和(自身を含む): 39720672

約数和(自身を除く): 19411216

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 11863, 23726, 47452, 94904, 189808, 1269341, 2538682, 5077364, 10154728, 20309456]

約数ペア:

[(1, 20309456), (2, 10154728), (4, 5077364), (8, 2538682), (16, 1269341), (107, 189808), (214, 94904), (428, 47452), (856, 23726), (1712, 11863)]