19942784

素因数分解:

$2^7\times {\mathrm{347}}^1\times {\mathrm{449}}^1$

素因数の和:810

約数の個数: 32

約数和(自身を含む): 39933000

約数和(自身を除く): 19990216

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 347, 449, 694, 898, 1388, 1796, 2776, 3592, 5552, 7184, 11104, 14368, 22208, 28736, 44416, 57472, 155803, 311606, 623212, 1246424, 2492848, 4985696, 9971392, 19942784]

約数ペア:

[(1, 19942784), (2, 9971392), (4, 4985696), (8, 2492848), (16, 1246424), (32, 623212), (64, 311606), (128, 155803), (347, 57472), (449, 44416), (694, 28736), (898, 22208), (1388, 14368), (1796, 11104), (2776, 7184), (3592, 5552)]