20428012

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{4339}}^1$

素因数の和:4461

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 18944468

約数列:

[1, 2, 4, 11, 22, 44, 107, 214, 428, 1177, 2354, 4339, 4708, 8678, 17356, 47729, 95458, 190916, 464273, 928546, 1857092, 5107003, 10214006, 20428012]

約数ペア:

[(1, 20428012), (2, 10214006), (4, 5107003), (11, 1857092), (22, 928546), (44, 464273), (107, 190916), (214, 95458), (428, 47729), (1177, 17356), (2354, 8678), (4339, 4708)]