20858929

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4877}}^1$

素因数の和:4944

約数の個数: 16

約数和(自身を含む): 26224128

約数和(自身を除く): 5365199

約数列:

[1, 7, 13, 47, 91, 329, 611, 4277, 4877, 34139, 63401, 229219, 443807, 1604533, 2979847, 20858929]

約数ペア:

[(1, 20858929), (7, 2979847), (13, 1604533), (47, 443807), (91, 229219), (329, 63401), (611, 34139), (4277, 4877)]