20091717

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 30025944

約数和(自身を除く): 9934227

約数列:

[1, 3, 9, 53, 73, 159, 219, 477, 577, 657, 1731, 3869, 5193, 11607, 30581, 34821, 42121, 91743, 126363, 275229, 379089, 2232413, 6697239, 20091717]

約数ペア:

[(1, 20091717), (3, 6697239), (9, 2232413), (53, 379089), (73, 275229), (159, 126363), (219, 91743), (477, 42121), (577, 34821), (657, 30581), (1731, 11607), (3869, 5193)]