20856854788

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67717061}}^1$

素因数の和:67717083

約数の個数: 24

約数和(自身を含む): 45505865664

約数和(自身を除く): 24649010876

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67717061, 135434122, 270868244, 474019427, 744887671, 948038854, 1489775342, 1896077708, 2979550684, 5214213697, 10428427394, 20856854788]

約数ペア:

[(1, 20856854788), (2, 10428427394), (4, 5214213697), (7, 2979550684), (11, 1896077708), (14, 1489775342), (22, 948038854), (28, 744887671), (44, 474019427), (77, 270868244), (154, 135434122), (308, 67717061)]