20801385

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42023}}^1$

素因数の和:42045

約数の個数: 24

約数和(自身を含む): 39334464

約数和(自身を除く): 18533079

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42023, 126069, 210115, 378207, 462253, 630345, 1386759, 1891035, 2311265, 4160277, 6933795, 20801385]

約数ペア:

[(1, 20801385), (3, 6933795), (5, 4160277), (9, 2311265), (11, 1891035), (15, 1386759), (33, 630345), (45, 462253), (55, 378207), (99, 210115), (165, 126069), (495, 42023)]