21280772

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{2713}}^1$

素因数の和:2807

約数の個数: 24

約数和(自身を含む): 38983896

約数和(自身を除く): 17703124

約数列:

[1, 2, 4, 37, 53, 74, 106, 148, 212, 1961, 2713, 3922, 5426, 7844, 10852, 100381, 143789, 200762, 287578, 401524, 575156, 5320193, 10640386, 21280772]

約数ペア:

[(1, 21280772), (2, 10640386), (4, 5320193), (37, 575156), (53, 401524), (74, 287578), (106, 200762), (148, 143789), (212, 100381), (1961, 10852), (2713, 7844), (3922, 5426)]