638975519

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{653}}^1\times {\mathrm{10753}}^1$

素因数の和:11426

約数の個数: 16

約数和(自身を含む): 787708992

約数和(自身を除く): 148733473

約数列:

[1, 7, 13, 91, 653, 4571, 8489, 10753, 59423, 75271, 139789, 978523, 7021709, 49151963, 91282217, 638975519]

約数ペア:

[(1, 638975519), (7, 91282217), (13, 49151963), (91, 7021709), (653, 978523), (4571, 139789), (8489, 75271), (10753, 59423)]