20407426

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:550

約数の個数: 24

約数和(自身を含む): 33434100

約数和(自身を除く): 13026674

約数列:

[1, 2, 13, 26, 169, 173, 338, 346, 349, 698, 2249, 4498, 4537, 9074, 29237, 58474, 58981, 60377, 117962, 120754, 784901, 1569802, 10203713, 20407426]

約数ペア:

[(1, 20407426), (2, 10203713), (13, 1569802), (26, 784901), (169, 120754), (173, 117962), (338, 60377), (346, 58981), (349, 58474), (698, 29237), (2249, 9074), (4498, 4537)]