11981781

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8269}}^1$

素因数の和:8305

約数の個数: 24

約数和(自身を含む): 20641920

約数和(自身を除く): 8660139

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 8269, 24807, 57883, 74421, 173649, 190187, 520947, 570561, 1331309, 1711683, 3993927, 11981781]

約数ペア:

[(1, 11981781), (3, 3993927), (7, 1711683), (9, 1331309), (21, 570561), (23, 520947), (63, 190187), (69, 173649), (161, 74421), (207, 57883), (483, 24807), (1449, 8269)]