21983588

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 44126208

約数和(自身を除く): 22142620

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 71, 124, 142, 227, 284, 341, 454, 682, 781, 908, 1364, 1562, 2201, 2497, 3124, 4402, 4994, 7037, 8804, 9988, 14074, 16117, 24211, 28148, 32234, 48422, 64468, 77407, 96844, 154814, 177287, 309628, 354574, 499627, 709148, 999254, 1998508, 5495897, 10991794, 21983588]

約数ペア:

[(1, 21983588), (2, 10991794), (4, 5495897), (11, 1998508), (22, 999254), (31, 709148), (44, 499627), (62, 354574), (71, 309628), (124, 177287), (142, 154814), (227, 96844), (284, 77407), (341, 64468), (454, 48422), (682, 32234), (781, 28148), (908, 24211), (1364, 16117), (1562, 14074), (2201, 9988), (2497, 8804), (3124, 7037), (4402, 4994)]