218794807

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1291}}^1$

素因数の和:1411

約数の個数: 32

約数和(自身を含む): 285769728

約数和(自身を除く): 66974921

約数列:

[1, 7, 11, 31, 71, 77, 217, 341, 497, 781, 1291, 2201, 2387, 5467, 9037, 14201, 15407, 24211, 40021, 91661, 99407, 169477, 280147, 440231, 641627, 1008271, 2841491, 3081617, 7057897, 19890437, 31256401, 218794807]

約数ペア:

[(1, 218794807), (7, 31256401), (11, 19890437), (31, 7057897), (71, 3081617), (77, 2841491), (217, 1008271), (341, 641627), (497, 440231), (781, 280147), (1291, 169477), (2201, 99407), (2387, 91661), (5467, 40021), (9037, 24211), (14201, 15407)]