19721284

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{523}}^1\times {\mathrm{857}}^1$

素因数の和:1395

約数の個数: 24

約数和(自身を含む): 37765728

約数和(自身を除く): 18044444

約数列:

[1, 2, 4, 11, 22, 44, 523, 857, 1046, 1714, 2092, 3428, 5753, 9427, 11506, 18854, 23012, 37708, 448211, 896422, 1792844, 4930321, 9860642, 19721284]

約数ペア:

[(1, 19721284), (2, 9860642), (4, 4930321), (11, 1792844), (22, 896422), (44, 448211), (523, 37708), (857, 23012), (1046, 18854), (1714, 11506), (2092, 9427), (3428, 5753)]