21347336

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140443}}^1$

素因数の和:140468

約数の個数: 16

約数和(自身を含む): 42133200

約数和(自身を除く): 20785864

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140443, 280886, 561772, 1123544, 2668417, 5336834, 10673668, 21347336]

約数ペア:

[(1, 21347336), (2, 10673668), (4, 5336834), (8, 2668417), (19, 1123544), (38, 561772), (76, 280886), (152, 140443)]