19805193945

素因数分解:

$3^2\times 5^1\times {\mathrm{440115421}}^1$

素因数の和:440115432

約数の個数: 12

約数和(自身を含む): 34329002916

約数和(自身を除く): 14523808971

約数列:

[1, 3, 5, 9, 15, 45, 440115421, 1320346263, 2200577105, 3961038789, 6601731315, 19805193945]

約数ペア:

[(1, 19805193945), (3, 6601731315), (5, 3961038789), (9, 2200577105), (15, 1320346263), (45, 440115421)]