81818121

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{8237}}^1$

素因数の和:8301

約数の個数: 32

約数和(自身を含む): 139189248

約数和(自身を除く): 57371127

約数列:

[1, 3, 7, 11, 21, 33, 43, 77, 129, 231, 301, 473, 903, 1419, 3311, 8237, 9933, 24711, 57659, 90607, 172977, 271821, 354191, 634249, 1062573, 1902747, 2479337, 3896101, 7438011, 11688303, 27272707, 81818121]

約数ペア:

[(1, 81818121), (3, 27272707), (7, 11688303), (11, 7438011), (21, 3896101), (33, 2479337), (43, 1902747), (77, 1062573), (129, 634249), (231, 354191), (301, 271821), (473, 172977), (903, 90607), (1419, 57659), (3311, 24711), (8237, 9933)]