20681756

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{1361}}^1$

素因数の和:1525

約数の個数: 24

約数和(自身を含む): 37754640

約数和(自身を除く): 17072884

約数列:

[1, 2, 4, 29, 58, 116, 131, 262, 524, 1361, 2722, 3799, 5444, 7598, 15196, 39469, 78938, 157876, 178291, 356582, 713164, 5170439, 10340878, 20681756]

約数ペア:

[(1, 20681756), (2, 10340878), (4, 5170439), (29, 713164), (58, 356582), (116, 178291), (131, 157876), (262, 78938), (524, 39469), (1361, 15196), (2722, 7598), (3799, 5444)]