2017397781

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1392269}}^1$

素因数の和:1392305

約数の個数: 24

約数和(自身を含む): 3475105920

約数和(自身を除く): 1457708139

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 1392269, 4176807, 9745883, 12530421, 29237649, 32022187, 87712947, 96066561, 224155309, 288199683, 672465927, 2017397781]

約数ペア:

[(1, 2017397781), (3, 672465927), (7, 288199683), (9, 224155309), (21, 96066561), (23, 87712947), (63, 32022187), (69, 29237649), (161, 12530421), (207, 9745883), (483, 4176807), (1449, 1392269)]