21398672

素因数分解:

$2^4\times {\mathrm{443}}^1\times {\mathrm{3019}}^1$

素因数の和:3470

約数の個数: 20

約数和(自身を含む): 41567280

約数和(自身を除く): 20168608

約数列:

[1, 2, 4, 8, 16, 443, 886, 1772, 3019, 3544, 6038, 7088, 12076, 24152, 48304, 1337417, 2674834, 5349668, 10699336, 21398672]

約数ペア:

[(1, 21398672), (2, 10699336), (4, 5349668), (8, 2674834), (16, 1337417), (443, 48304), (886, 24152), (1772, 12076), (3019, 7088), (3544, 6038)]