19889715

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{32341}}^1$

素因数の和:32390

約数の個数: 16

約数和(自身を含む): 32600736

約数和(自身を除く): 12711021

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 32341, 97023, 161705, 485115, 1325981, 3977943, 6629905, 19889715]

約数ペア:

[(1, 19889715), (3, 6629905), (5, 3977943), (15, 1325981), (41, 485115), (123, 161705), (205, 97023), (615, 32341)]