816165

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{2591}}^1$

素因数の和:2609

約数の個数: 24

約数和(自身を含む): 1617408

約数和(自身を除く): 801243

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 2591, 7773, 12955, 18137, 23319, 38865, 54411, 90685, 116595, 163233, 272055, 816165]

約数ペア:

[(1, 816165), (3, 272055), (5, 163233), (7, 116595), (9, 90685), (15, 54411), (21, 38865), (35, 23319), (45, 18137), (63, 12955), (105, 7773), (315, 2591)]