247898007

素因数分解:

$3^2\times 7^2\times {\mathrm{659}}^1\times {\mathrm{853}}^1$

素因数の和:1532

約数の個数: 36

約数和(自身を含む): 417657240

約数和(自身を除く): 169759233

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 659, 853, 1977, 2559, 4613, 5931, 5971, 7677, 13839, 17913, 32291, 41517, 41797, 53739, 96873, 125391, 290619, 376173, 562127, 1686381, 3934889, 5059143, 11804667, 27544223, 35414001, 82632669, 247898007]

約数ペア:

[(1, 247898007), (3, 82632669), (7, 35414001), (9, 27544223), (21, 11804667), (49, 5059143), (63, 3934889), (147, 1686381), (441, 562127), (659, 376173), (853, 290619), (1977, 125391), (2559, 96873), (4613, 53739), (5931, 41797), (5971, 41517), (7677, 32291), (13839, 17913)]