21061288

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{71153}}^1$

素因数の和:71196

約数の個数: 16

約数和(自身を含む): 40557780

約数和(自身を除く): 19496492

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 71153, 142306, 284612, 569224, 2632661, 5265322, 10530644, 21061288]

約数ペア:

[(1, 21061288), (2, 10530644), (4, 5265322), (8, 2632661), (37, 569224), (74, 284612), (148, 142306), (296, 71153)]