21254926

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19717}}^1$

素因数の和:19744

約数の個数: 24

約数和(自身を含む): 40461336

約数和(自身を除く): 19206410

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19717, 39434, 138019, 216887, 276038, 433774, 966133, 1518209, 1932266, 3036418, 10627463, 21254926]

約数ペア:

[(1, 21254926), (2, 10627463), (7, 3036418), (11, 1932266), (14, 1518209), (22, 966133), (49, 433774), (77, 276038), (98, 216887), (154, 138019), (539, 39434), (1078, 19717)]