20913664

素因数分解:

$2^9\times {\mathrm{40847}}^1$

素因数の和:40865

約数の個数: 20

約数和(自身を含む): 41787504

約数和(自身を除く): 20873840

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 40847, 81694, 163388, 326776, 653552, 1307104, 2614208, 5228416, 10456832, 20913664]

約数ペア:

[(1, 20913664), (2, 10456832), (4, 5228416), (8, 2614208), (16, 1307104), (32, 653552), (64, 326776), (128, 163388), (256, 81694), (512, 40847)]