20806856

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6091}}^1$

素因数の和:6165

約数の個数: 32

約数和(自身を含む): 45324480

約数和(自身を除く): 24517624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 6091, 12182, 24364, 42637, 48728, 85274, 170548, 341096, 371551, 743102, 1486204, 2600857, 2972408, 5201714, 10403428, 20806856]

約数ペア:

[(1, 20806856), (2, 10403428), (4, 5201714), (7, 2972408), (8, 2600857), (14, 1486204), (28, 743102), (56, 371551), (61, 341096), (122, 170548), (244, 85274), (427, 48728), (488, 42637), (854, 24364), (1708, 12182), (3416, 6091)]