20255391

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4679}}^1$

素因数の和:4735

約数の個数: 24

約数和(自身を含む): 32366880

約数和(自身を除く): 12111489

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 481, 1443, 4329, 4679, 14037, 42111, 60827, 173123, 182481, 519369, 547443, 1558107, 2250599, 6751797, 20255391]

約数ペア:

[(1, 20255391), (3, 6751797), (9, 2250599), (13, 1558107), (37, 547443), (39, 519369), (111, 182481), (117, 173123), (333, 60827), (481, 42111), (1443, 14037), (4329, 4679)]