18810945

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3191}}^1$

素因数の和:3333

約数の個数: 24

約数和(自身を含む): 32864832

約数和(自身を除く): 14053887

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 3191, 5895, 9573, 15955, 28719, 47865, 143595, 418021, 1254063, 2090105, 3762189, 6270315, 18810945]

約数ペア:

[(1, 18810945), (3, 6270315), (5, 3762189), (9, 2090105), (15, 1254063), (45, 418021), (131, 143595), (393, 47865), (655, 28719), (1179, 15955), (1965, 9573), (3191, 5895)]