213957081

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{883}}^1$

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 353953600

約数和(自身を除く): 139996519

約数列:

[1, 3, 9, 13, 19, 39, 57, 109, 117, 171, 247, 327, 741, 883, 981, 1417, 2071, 2223, 2649, 4251, 6213, 7947, 11479, 12753, 16777, 18639, 26923, 34437, 50331, 80769, 96247, 103311, 150993, 218101, 242307, 288741, 654303, 866223, 1251211, 1828693, 1962909, 3753633, 5486079, 11260899, 16458237, 23773009, 71319027, 213957081]

約数ペア:

[(1, 213957081), (3, 71319027), (9, 23773009), (13, 16458237), (19, 11260899), (39, 5486079), (57, 3753633), (109, 1962909), (117, 1828693), (171, 1251211), (247, 866223), (327, 654303), (741, 288741), (883, 242307), (981, 218101), (1417, 150993), (2071, 103311), (2223, 96247), (2649, 80769), (4251, 50331), (6213, 34437), (7947, 26923), (11479, 18639), (12753, 16777)]