21326543

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{4273}}^1$

素因数の和:4334

約数の個数: 16

約数和(自身を含む): 26259456

約数和(自身を除く): 4932913

約数列:

[1, 7, 23, 31, 161, 217, 713, 4273, 4991, 29911, 98279, 132463, 687953, 927241, 3046649, 21326543]

約数ペア:

[(1, 21326543), (7, 3046649), (23, 927241), (31, 687953), (161, 132463), (217, 98279), (713, 29911), (4273, 4991)]