20187264461

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{22783}}^1$

素因数の和:22930

約数の個数: 36

約数和(自身を含む): 25667269632

約数和(自身を除く): 5480005171

約数列:

[1, 7, 13, 49, 91, 107, 169, 637, 749, 1183, 1391, 5243, 8281, 9737, 18083, 22783, 68159, 126581, 159481, 296179, 886067, 1116367, 2073253, 2437781, 3850327, 14512771, 17064467, 26952289, 31691153, 119451269, 188666023, 221838071, 411984989, 1552866497, 2883894923, 20187264461]

約数ペア:

[(1, 20187264461), (7, 2883894923), (13, 1552866497), (49, 411984989), (91, 221838071), (107, 188666023), (169, 119451269), (637, 31691153), (749, 26952289), (1183, 17064467), (1391, 14512771), (5243, 3850327), (8281, 2437781), (9737, 2073253), (18083, 1116367), (22783, 886067), (68159, 296179), (126581, 159481)]