388971583

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 533786112

約数和(自身を除く): 144814529

約数列:

[1, 7, 11, 13, 71, 77, 91, 143, 169, 421, 497, 781, 923, 1001, 1183, 1859, 2947, 4631, 5467, 5473, 6461, 10153, 11999, 13013, 29891, 32417, 38311, 60203, 71071, 71149, 83993, 131989, 209237, 328801, 388583, 421421, 498043, 782639, 923923, 2301607, 2720081, 4274413, 5051579, 5478473, 29920891, 35361053, 55567369, 388971583]

約数ペア:

[(1, 388971583), (7, 55567369), (11, 35361053), (13, 29920891), (71, 5478473), (77, 5051579), (91, 4274413), (143, 2720081), (169, 2301607), (421, 923923), (497, 782639), (781, 498043), (923, 421421), (1001, 388583), (1183, 328801), (1859, 209237), (2947, 131989), (4631, 83993), (5467, 71149), (5473, 71071), (6461, 60203), (10153, 38311), (11999, 32417), (13013, 29891)]