20005126779

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1\times {\mathrm{15329}}^1$

素因数の和:15971

約数の個数: 32

約数和(自身を含む): 29563107840

約数和(自身を除く): 9557981061

約数列:

[1, 3, 11, 33, 71, 213, 557, 781, 1671, 2343, 6127, 15329, 18381, 39547, 45987, 118641, 168619, 435017, 505857, 1088359, 1305051, 3265077, 8538253, 11971949, 25614759, 35915847, 93920783, 281762349, 606215963, 1818647889, 6668375593, 20005126779]

約数ペア:

[(1, 20005126779), (3, 6668375593), (11, 1818647889), (33, 606215963), (71, 281762349), (213, 93920783), (557, 35915847), (781, 25614759), (1671, 11971949), (2343, 8538253), (6127, 3265077), (15329, 1305051), (18381, 1088359), (39547, 505857), (45987, 435017), (118641, 168619)]