20789811

素因数分解:

$3^3\times 7^1\times {\mathrm{317}}^1\times {\mathrm{347}}^1$

素因数の和:680

約数の個数: 32

約数和(自身を含む): 35412480

約数和(自身を除く): 14622669

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 317, 347, 951, 1041, 2219, 2429, 2853, 3123, 6657, 7287, 8559, 9369, 19971, 21861, 59913, 65583, 109999, 329997, 769993, 989991, 2309979, 2969973, 6929937, 20789811]

約数ペア:

[(1, 20789811), (3, 6929937), (7, 2969973), (9, 2309979), (21, 989991), (27, 769993), (63, 329997), (189, 109999), (317, 65583), (347, 59913), (951, 21861), (1041, 19971), (2219, 9369), (2429, 8559), (2853, 7287), (3123, 6657)]