20267559

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{557}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 31685472

約数和(自身を除く): 11417913

約数列:

[1, 3, 9, 13, 39, 117, 311, 557, 933, 1671, 2799, 4043, 5013, 7241, 12129, 21723, 36387, 65169, 173227, 519681, 1559043, 2251951, 6755853, 20267559]

約数ペア:

[(1, 20267559), (3, 6755853), (9, 2251951), (13, 1559043), (39, 519681), (117, 173227), (311, 65169), (557, 36387), (933, 21723), (1671, 12129), (2799, 7241), (4043, 5013)]