20988296

素因数分解:

$2^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2861}}^1$

素因数の和:3005

約数の個数: 32

約数和(自身を含む): 45334080

約数和(自身を除く): 24345784

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 131, 262, 524, 917, 1048, 1834, 2861, 3668, 5722, 7336, 11444, 20027, 22888, 40054, 80108, 160216, 374791, 749582, 1499164, 2623537, 2998328, 5247074, 10494148, 20988296]

約数ペア:

[(1, 20988296), (2, 10494148), (4, 5247074), (7, 2998328), (8, 2623537), (14, 1499164), (28, 749582), (56, 374791), (131, 160216), (262, 80108), (524, 40054), (917, 22888), (1048, 20027), (1834, 11444), (2861, 7336), (3668, 5722)]