2181333

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:118

約数の個数: 48

約数和(自身を含む): 3939840

約数和(自身を除く): 1758507

約数列:

[1, 3, 7, 11, 19, 21, 33, 49, 57, 71, 77, 133, 147, 209, 213, 231, 399, 497, 539, 627, 781, 931, 1349, 1463, 1491, 1617, 2343, 2793, 3479, 4047, 4389, 5467, 9443, 10241, 10437, 14839, 16401, 28329, 30723, 38269, 44517, 66101, 103873, 114807, 198303, 311619, 727111, 2181333]

約数ペア:

[(1, 2181333), (3, 727111), (7, 311619), (11, 198303), (19, 114807), (21, 103873), (33, 66101), (49, 44517), (57, 38269), (71, 30723), (77, 28329), (133, 16401), (147, 14839), (209, 10437), (213, 10241), (231, 9443), (399, 5467), (497, 4389), (539, 4047), (627, 3479), (781, 2793), (931, 2343), (1349, 1617), (1463, 1491)]