20661710

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29101}}^1$

素因数の和:29179

約数の個数: 16

約数和(自身を含む): 37716192

約数和(自身を除く): 17054482

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29101, 58202, 145505, 291010, 2066171, 4132342, 10330855, 20661710]

約数ペア:

[(1, 20661710), (2, 10330855), (5, 4132342), (10, 2066171), (71, 291010), (142, 145505), (355, 58202), (710, 29101)]