20779612

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{5417}}^1$

素因数の和:5565

約数の個数: 24

約数和(自身を含む): 41870304

約数和(自身を除く): 21090692

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 5417, 10834, 21668, 37919, 75838, 151676, 742129, 1484258, 2968516, 5194903, 10389806, 20779612]

約数ペア:

[(1, 20779612), (2, 10389806), (4, 5194903), (7, 2968516), (14, 1484258), (28, 742129), (137, 151676), (274, 75838), (548, 37919), (959, 21668), (1918, 10834), (3836, 5417)]