21742756

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10937}}^1$

素因数の和:11019

約数の個数: 24

約数和(自身を含む): 44102016

約数和(自身を除く): 22359260

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10937, 21874, 43748, 76559, 153118, 306236, 776527, 1553054, 3106108, 5435689, 10871378, 21742756]

約数ペア:

[(1, 21742756), (2, 10871378), (4, 5435689), (7, 3106108), (14, 1553054), (28, 776527), (71, 306236), (142, 153118), (284, 76559), (497, 43748), (994, 21874), (1988, 10937)]