18780345

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{5717}}^1$

素因数の和:5801

約数の個数: 24

約数和(自身を含む): 33004296

約数和(自身を除く): 14223951

約数列:

[1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 1095, 3285, 5717, 17151, 28585, 51453, 85755, 257265, 417341, 1252023, 2086705, 3756069, 6260115, 18780345]

約数ペア:

[(1, 18780345), (3, 6260115), (5, 3756069), (9, 2086705), (15, 1252023), (45, 417341), (73, 257265), (219, 85755), (365, 51453), (657, 28585), (1095, 17151), (3285, 5717)]