19668315

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31981}}^1$

素因数の和:32030

約数の個数: 16

約数和(自身を含む): 32237856

約数和(自身を除く): 12569541

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 31981, 95943, 159905, 479715, 1311221, 3933663, 6556105, 19668315]

約数ペア:

[(1, 19668315), (3, 6556105), (5, 3933663), (15, 1311221), (41, 479715), (123, 159905), (205, 95943), (615, 31981)]