21188778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{271651}}^1$

素因数の和:271669

約数の個数: 16

約数和(自身を含む): 45637536

約数和(自身を除く): 24448758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 271651, 543302, 814953, 1629906, 3531463, 7062926, 10594389, 21188778]

約数ペア:

[(1, 21188778), (2, 10594389), (3, 7062926), (6, 3531463), (13, 1629906), (26, 814953), (39, 543302), (78, 271651)]