20965742

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65111}}^1$

素因数の和:65143

約数の個数: 16

約数和(自身を含む): 37504512

約数和(自身を除く): 16538770

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 65111, 130222, 455777, 911554, 1497553, 2995106, 10482871, 20965742]

約数ペア:

[(1, 20965742), (2, 10482871), (7, 2995106), (14, 1497553), (23, 911554), (46, 455777), (161, 130222), (322, 65111)]