18539824

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{21863}}^1$

素因数の和:21924

約数の個数: 20

約数和(自身を含む): 36600336

約数和(自身を除く): 18060512

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 21863, 43726, 87452, 174904, 349808, 1158739, 2317478, 4634956, 9269912, 18539824]

約数ペア:

[(1, 18539824), (2, 9269912), (4, 4634956), (8, 2317478), (16, 1158739), (53, 349808), (106, 174904), (212, 87452), (424, 43726), (848, 21863)]