20781679347

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{221197}}^1$

素因数の和:221300

約数の個数: 48

約数和(自身を含む): 35749135968

約数和(自身を除く): 14967456621

約数列:

[1, 3, 9, 11, 13, 33, 39, 73, 99, 117, 143, 219, 429, 657, 803, 949, 1287, 2409, 2847, 7227, 8541, 10439, 31317, 93951, 221197, 663591, 1990773, 2433167, 2875561, 7299501, 8626683, 16147381, 21898503, 25880049, 31631171, 48442143, 94893513, 145326429, 177621191, 209915953, 284680539, 532863573, 629747859, 1598590719, 1889243577, 2309075483, 6927226449, 20781679347]

約数ペア:

[(1, 20781679347), (3, 6927226449), (9, 2309075483), (11, 1889243577), (13, 1598590719), (33, 629747859), (39, 532863573), (73, 284680539), (99, 209915953), (117, 177621191), (143, 145326429), (219, 94893513), (429, 48442143), (657, 31631171), (803, 25880049), (949, 21898503), (1287, 16147381), (2409, 8626683), (2847, 7299501), (7227, 2875561), (8541, 2433167), (10439, 1990773), (31317, 663591), (93951, 221197)]