20178256959

素因数分解:

$3^2\times 7^1\times {\mathrm{1531}}^1\times {\mathrm{209203}}^1$

素因数の和:210747

約数の個数: 24

約数和(自身を含む): 33332054912

約数和(自身を除く): 13153797953

約数列:

[1, 3, 7, 9, 21, 63, 1531, 4593, 10717, 13779, 32151, 96453, 209203, 627609, 1464421, 1882827, 4393263, 13179789, 320289793, 960869379, 2242028551, 2882608137, 6726085653, 20178256959]

約数ペア:

[(1, 20178256959), (3, 6726085653), (7, 2882608137), (9, 2242028551), (21, 960869379), (63, 320289793), (1531, 13179789), (4593, 4393263), (10717, 1882827), (13779, 1464421), (32151, 627609), (96453, 209203)]