28007685

素因数分解:

$3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2791}}^1$

素因数の和:3025

約数の個数: 24

約数和(自身を含む): 48781824

約数和(自身を除く): 20774139

約数列:

[1, 3, 5, 9, 15, 45, 223, 669, 1115, 2007, 2791, 3345, 8373, 10035, 13955, 25119, 41865, 125595, 622393, 1867179, 3111965, 5601537, 9335895, 28007685]

約数ペア:

[(1, 28007685), (3, 9335895), (5, 5601537), (9, 3111965), (15, 1867179), (45, 622393), (223, 125595), (669, 41865), (1115, 25119), (2007, 13955), (2791, 10035), (3345, 8373)]