20475824

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{9769}}^1$

素因数の和:9908

約数の個数: 20

約数和(自身を含む): 39978840

約数和(自身を除く): 19503016

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 9769, 19538, 39076, 78152, 156304, 1279739, 2559478, 5118956, 10237912, 20475824]

約数ペア:

[(1, 20475824), (2, 10237912), (4, 5118956), (8, 2559478), (16, 1279739), (131, 156304), (262, 78152), (524, 39076), (1048, 19538), (2096, 9769)]