12289221

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2011}}^1$

素因数の和:2121

約数の個数: 24

約数和(自身を含む): 20506304

約数和(自身を除く): 8217083

約数列:

[1, 3, 7, 9, 21, 63, 97, 291, 679, 873, 2011, 2037, 6033, 6111, 14077, 18099, 42231, 126693, 195067, 585201, 1365469, 1755603, 4096407, 12289221]

約数ペア:

[(1, 12289221), (3, 4096407), (7, 1755603), (9, 1365469), (21, 585201), (63, 195067), (97, 126693), (291, 42231), (679, 18099), (873, 14077), (2011, 6111), (2037, 6033)]