21747418

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{499}}^1$

素因数の和:802

約数の個数: 32

約数和(自身を含む): 40896000

約数和(自身を除く): 19148582

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 283, 499, 566, 998, 1981, 3113, 3493, 3962, 5489, 6226, 6986, 10978, 21791, 38423, 43582, 76846, 141217, 282434, 988519, 1553387, 1977038, 3106774, 10873709, 21747418]

約数ペア:

[(1, 21747418), (2, 10873709), (7, 3106774), (11, 1977038), (14, 1553387), (22, 988519), (77, 282434), (154, 141217), (283, 76846), (499, 43582), (566, 38423), (998, 21791), (1981, 10978), (3113, 6986), (3493, 6226), (3962, 5489)]