20806923914

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47942221}}^1$

素因数の和:47942261

約数の個数: 16

約数和(自身を含む): 36819626496

約数和(自身を除く): 16012702582

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 47942221, 95884442, 335595547, 671191094, 1486208851, 2972417702, 10403461957, 20806923914]

約数ペア:

[(1, 20806923914), (2, 10403461957), (7, 2972417702), (14, 1486208851), (31, 671191094), (62, 335595547), (217, 95884442), (434, 47942221)]