21013120

素因数分解:

$2^7\times 5^1\times {\mathrm{32833}}^1$

素因数の和:32852

約数の個数: 32

約数和(自身を含む): 50236020

約数和(自身を除く): 29222900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32833, 65666, 131332, 164165, 262664, 328330, 525328, 656660, 1050656, 1313320, 2101312, 2626640, 4202624, 5253280, 10506560, 21013120]

約数ペア:

[(1, 21013120), (2, 10506560), (4, 5253280), (5, 4202624), (8, 2626640), (10, 2101312), (16, 1313320), (20, 1050656), (32, 656660), (40, 525328), (64, 328330), (80, 262664), (128, 164165), (160, 131332), (320, 65666), (640, 32833)]