20709227

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{599}}^1$

素因数の和:1066

約数の個数: 16

約数和(自身を含む): 25920000

約数和(自身を除く): 5210773

約数列:

[1, 7, 11, 77, 449, 599, 3143, 4193, 4939, 6589, 34573, 46123, 268951, 1882657, 2958461, 20709227]

約数ペア:

[(1, 20709227), (7, 2958461), (11, 1882657), (77, 268951), (449, 46123), (599, 34573), (3143, 6589), (4193, 4939)]