20478854

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{11783}}^1$

素因数の和:11875

約数の個数: 16

約数和(自身を含む): 33937920

約数和(自身を除く): 13459066

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 11783, 23566, 129613, 259226, 930857, 1861714, 10239427, 20478854]

約数ペア:

[(1, 20478854), (2, 10239427), (11, 1861714), (22, 930857), (79, 259226), (158, 129613), (869, 23566), (1738, 11783)]