20819763

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1117}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 31974800

約数和(自身を除く): 11155037

約数列:

[1, 3, 9, 19, 57, 109, 171, 327, 981, 1117, 2071, 3351, 6213, 10053, 18639, 21223, 63669, 121753, 191007, 365259, 1095777, 2313307, 6939921, 20819763]

約数ペア:

[(1, 20819763), (3, 6939921), (9, 2313307), (19, 1095777), (57, 365259), (109, 191007), (171, 121753), (327, 63669), (981, 21223), (1117, 18639), (2071, 10053), (3351, 6213)]