20514808

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{82721}}^1$

素因数の和:82758

約数の個数: 16

約数和(自身を含む): 39706560

約数和(自身を除く): 19191752

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 82721, 165442, 330884, 661768, 2564351, 5128702, 10257404, 20514808]

約数ペア:

[(1, 20514808), (2, 10257404), (4, 5128702), (8, 2564351), (31, 661768), (62, 330884), (124, 165442), (248, 82721)]