12766221

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{983}}^1$

素因数の和:1042

約数の個数: 32

約数和(自身を含む): 20939520

約数和(自身を除く): 8173299

約数列:

[1, 3, 9, 13, 27, 37, 39, 111, 117, 333, 351, 481, 983, 999, 1443, 2949, 4329, 8847, 12779, 12987, 26541, 36371, 38337, 109113, 115011, 327339, 345033, 472823, 982017, 1418469, 4255407, 12766221]

約数ペア:

[(1, 12766221), (3, 4255407), (9, 1418469), (13, 982017), (27, 472823), (37, 345033), (39, 327339), (111, 115011), (117, 109113), (333, 38337), (351, 36371), (481, 26541), (983, 12987), (999, 12779), (1443, 8847), (2949, 4329)]