19804455

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40009}}^1$

素因数の和:40031

約数の個数: 24

約数和(自身を含む): 37449360

約数和(自身を除く): 17644905

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 40009, 120027, 200045, 360081, 440099, 600135, 1320297, 1800405, 2200495, 3960891, 6601485, 19804455]

約数ペア:

[(1, 19804455), (3, 6601485), (5, 3960891), (9, 2200495), (11, 1800405), (15, 1320297), (33, 600135), (45, 440099), (55, 360081), (99, 200045), (165, 120027), (495, 40009)]