20712585

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{33679}}^1$

素因数の和:33728

約数の個数: 16

約数和(自身を含む): 33949440

約数和(自身を除く): 13236855

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 33679, 101037, 168395, 505185, 1380839, 4142517, 6904195, 20712585]

約数ペア:

[(1, 20712585), (3, 6904195), (5, 4142517), (15, 1380839), (41, 505185), (123, 168395), (205, 101037), (615, 33679)]