21060424

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 28705976

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 179, 191, 308, 358, 382, 616, 716, 764, 1253, 1337, 1432, 1528, 1969, 2101, 2506, 2674, 3938, 4202, 5012, 5348, 7876, 8404, 10024, 10696, 13783, 14707, 15752, 16808, 27566, 29414, 34189, 55132, 58828, 68378, 110264, 117656, 136756, 239323, 273512, 376079, 478646, 752158, 957292, 1504316, 1914584, 2632553, 3008632, 5265106, 10530212, 21060424]

約数ペア:

[(1, 21060424), (2, 10530212), (4, 5265106), (7, 3008632), (8, 2632553), (11, 1914584), (14, 1504316), (22, 957292), (28, 752158), (44, 478646), (56, 376079), (77, 273512), (88, 239323), (154, 136756), (179, 117656), (191, 110264), (308, 68378), (358, 58828), (382, 55132), (616, 34189), (716, 29414), (764, 27566), (1253, 16808), (1337, 15752), (1432, 14707), (1528, 13783), (1969, 10696), (2101, 10024), (2506, 8404), (2674, 7876), (3938, 5348), (4202, 5012)]