20977506

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1999}}^1$

素因数の和:2071

約数の個数: 48

約数和(自身を含む): 50544000

約数和(自身を除く): 29566494

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 53, 66, 99, 106, 159, 198, 318, 477, 583, 954, 1166, 1749, 1999, 3498, 3998, 5247, 5997, 10494, 11994, 17991, 21989, 35982, 43978, 65967, 105947, 131934, 197901, 211894, 317841, 395802, 635682, 953523, 1165417, 1907046, 2330834, 3496251, 6992502, 10488753, 20977506]

約数ペア:

[(1, 20977506), (2, 10488753), (3, 6992502), (6, 3496251), (9, 2330834), (11, 1907046), (18, 1165417), (22, 953523), (33, 635682), (53, 395802), (66, 317841), (99, 211894), (106, 197901), (159, 131934), (198, 105947), (318, 65967), (477, 43978), (583, 35982), (954, 21989), (1166, 17991), (1749, 11994), (1999, 10494), (3498, 5997), (3998, 5247)]