20698215

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{22621}}^1$

素因数の和:22690

約数の個数: 16

約数和(自身を含む): 33661536

約数和(自身を除く): 12963321

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 22621, 67863, 113105, 339315, 1379881, 4139643, 6899405, 20698215]

約数ペア:

[(1, 20698215), (3, 6899405), (5, 4139643), (15, 1379881), (61, 339315), (183, 113105), (305, 67863), (915, 22621)]