215744221

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 300810240

約数和(自身を除く): 85066019

約数列:

[1, 7, 11, 19, 31, 67, 71, 77, 133, 209, 217, 341, 469, 497, 589, 737, 781, 1273, 1349, 1463, 2077, 2201, 2387, 4123, 4757, 5159, 5467, 6479, 8911, 9443, 14003, 14539, 14839, 15407, 22847, 24211, 33299, 39463, 41819, 45353, 52327, 90383, 98021, 103873, 147467, 159929, 169477, 276241, 292733, 366289, 434093, 460009, 632681, 994213, 1032269, 1622137, 2801873, 3038651, 3220063, 6959491, 11354959, 19613111, 30820603, 215744221]

約数ペア:

[(1, 215744221), (7, 30820603), (11, 19613111), (19, 11354959), (31, 6959491), (67, 3220063), (71, 3038651), (77, 2801873), (133, 1622137), (209, 1032269), (217, 994213), (341, 632681), (469, 460009), (497, 434093), (589, 366289), (737, 292733), (781, 276241), (1273, 169477), (1349, 159929), (1463, 147467), (2077, 103873), (2201, 98021), (2387, 90383), (4123, 52327), (4757, 45353), (5159, 41819), (5467, 39463), (6479, 33299), (8911, 24211), (9443, 22847), (14003, 15407), (14539, 14839)]