20178440079

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{739}}^1\times {\mathrm{6737}}^1$

素因数の和:7679

約数の個数: 32

約数和(自身を含む): 30953832960

約数和(自身を除く): 10775392881

約数列:

[1, 3, 7, 21, 193, 579, 739, 1351, 2217, 4053, 5173, 6737, 15519, 20211, 47159, 141477, 142627, 427881, 998389, 1300241, 2995167, 3900723, 4978643, 9101687, 14935929, 27305061, 34850501, 104551503, 960878099, 2882634297, 6726146693, 20178440079]

約数ペア:

[(1, 20178440079), (3, 6726146693), (7, 2882634297), (21, 960878099), (193, 104551503), (579, 34850501), (739, 27305061), (1351, 14935929), (2217, 9101687), (4053, 4978643), (5173, 3900723), (6737, 2995167), (15519, 1300241), (20211, 998389), (47159, 427881), (141477, 142627)]