21129280

素因数分解:

$2^6\times 5^1\times {\mathrm{66029}}^1$

素因数の和:66046

約数の個数: 28

約数和(自身を含む): 50314860

約数和(自身を除く): 29185580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 66029, 132058, 264116, 330145, 528232, 660290, 1056464, 1320580, 2112928, 2641160, 4225856, 5282320, 10564640, 21129280]

約数ペア:

[(1, 21129280), (2, 10564640), (4, 5282320), (5, 4225856), (8, 2641160), (10, 2112928), (16, 1320580), (20, 1056464), (32, 660290), (40, 528232), (64, 330145), (80, 264116), (160, 132058), (320, 66029)]