28918863

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{1601}}^1$

素因数の和:1836

約数の個数: 20

約数和(自身を含む): 43420608

約数和(自身を除く): 14501745

約数列:

[1, 3, 9, 27, 81, 223, 669, 1601, 2007, 4803, 6021, 14409, 18063, 43227, 129681, 357023, 1071069, 3213207, 9639621, 28918863]

約数ペア:

[(1, 28918863), (3, 9639621), (9, 3213207), (27, 1071069), (81, 357023), (223, 129681), (669, 43227), (1601, 18063), (2007, 14409), (4803, 6021)]