20287215

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34679}}^1$

素因数の和:34703

約数の個数: 24

約数和(自身を含む): 37870560

約数和(自身を除く): 17583345

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 34679, 104037, 173395, 312111, 450827, 520185, 1352481, 1560555, 2254135, 4057443, 6762405, 20287215]

約数ペア:

[(1, 20287215), (3, 6762405), (5, 4057443), (9, 2254135), (13, 1560555), (15, 1352481), (39, 520185), (45, 450827), (65, 312111), (117, 173395), (195, 104037), (585, 34679)]