18688336

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{16451}}^1$

素因数の和:16530

約数の個数: 20

約数和(自身を含む): 36720864

約数和(自身を除く): 18032528

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 16451, 32902, 65804, 131608, 263216, 1168021, 2336042, 4672084, 9344168, 18688336]

約数ペア:

[(1, 18688336), (2, 9344168), (4, 4672084), (8, 2336042), (16, 1168021), (71, 263216), (142, 131608), (284, 65804), (568, 32902), (1136, 16451)]