20788852

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15797}}^1$

素因数の和:15855

約数の個数: 24

約数和(自身を含む): 42465024

約数和(自身を除く): 21676172

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15797, 31594, 63188, 110579, 221158, 442316, 742459, 1484918, 2969836, 5197213, 10394426, 20788852]

約数ペア:

[(1, 20788852), (2, 10394426), (4, 5197213), (7, 2969836), (14, 1484918), (28, 742459), (47, 442316), (94, 221158), (188, 110579), (329, 63188), (658, 31594), (1316, 15797)]