20558363

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{449}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 24422400

約数和(自身を除く): 3864037

約数列:

[1, 7, 31, 211, 217, 449, 1477, 3143, 6541, 13919, 45787, 94739, 97433, 663173, 2936909, 20558363]

約数ペア:

[(1, 20558363), (7, 2936909), (31, 663173), (211, 97433), (217, 94739), (449, 45787), (1477, 13919), (3143, 6541)]