12903315

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20981}}^1$

素因数の和:21030

約数の個数: 16

約数和(自身を含む): 21149856

約数和(自身を除く): 8246541

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 20981, 62943, 104905, 314715, 860221, 2580663, 4301105, 12903315]

約数ペア:

[(1, 12903315), (3, 4301105), (5, 2580663), (15, 860221), (41, 314715), (123, 104905), (205, 62943), (615, 20981)]