20804821455

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{479429}}^1$

素因数の和:479711

約数の個数: 32

約数和(自身を含む): 36452021760

約数和(自身を除く): 15647200305

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 263, 789, 1315, 2893, 3945, 8679, 14465, 43395, 479429, 1438287, 2397145, 5273719, 7191435, 15821157, 26368595, 79105785, 126089827, 378269481, 630449135, 1386988097, 1891347405, 4160964291, 6934940485, 20804821455]

約数ペア:

[(1, 20804821455), (3, 6934940485), (5, 4160964291), (11, 1891347405), (15, 1386988097), (33, 630449135), (55, 378269481), (165, 126089827), (263, 79105785), (789, 26368595), (1315, 15821157), (2893, 7191435), (3945, 5273719), (8679, 2397145), (14465, 1438287), (43395, 479429)]