20793738

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{661}}^1$

素因数の和:787

約数の個数: 48

約数和(自身を含む): 48903264

約数和(自身を除く): 28109526

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 107, 147, 214, 294, 321, 642, 661, 749, 1322, 1498, 1983, 2247, 3966, 4494, 4627, 5243, 9254, 10486, 13881, 15729, 27762, 31458, 32389, 64778, 70727, 97167, 141454, 194334, 212181, 424362, 495089, 990178, 1485267, 2970534, 3465623, 6931246, 10396869, 20793738]

約数ペア:

[(1, 20793738), (2, 10396869), (3, 6931246), (6, 3465623), (7, 2970534), (14, 1485267), (21, 990178), (42, 495089), (49, 424362), (98, 212181), (107, 194334), (147, 141454), (214, 97167), (294, 70727), (321, 64778), (642, 32389), (661, 31458), (749, 27762), (1322, 15729), (1498, 13881), (1983, 10486), (2247, 9254), (3966, 5243), (4494, 4627)]