21242133

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 36840960

約数和(自身を除く): 15598827

約数列:

[1, 3, 9, 11, 19, 23, 33, 57, 69, 99, 171, 207, 209, 253, 437, 491, 627, 759, 1311, 1473, 1881, 2277, 3933, 4419, 4807, 5401, 9329, 11293, 14421, 16203, 27987, 33879, 43263, 48609, 83961, 101637, 102619, 124223, 214567, 307857, 372669, 643701, 923571, 1118007, 1931103, 2360237, 7080711, 21242133]

約数ペア:

[(1, 21242133), (3, 7080711), (9, 2360237), (11, 1931103), (19, 1118007), (23, 923571), (33, 643701), (57, 372669), (69, 307857), (99, 214567), (171, 124223), (207, 102619), (209, 101637), (253, 83961), (437, 48609), (491, 43263), (627, 33879), (759, 27987), (1311, 16203), (1473, 14421), (1881, 11293), (2277, 9329), (3933, 5401), (4419, 4807)]