20019811

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{293}}^1$

素因数の和:570

約数の個数: 16

約数和(自身を含む): 23595264

約数和(自身を除く): 3575453

約数列:

[1, 7, 43, 227, 293, 301, 1589, 2051, 9761, 12599, 66511, 68327, 88193, 465577, 2859973, 20019811]

約数ペア:

[(1, 20019811), (7, 2859973), (43, 465577), (227, 88193), (293, 68327), (301, 66511), (1589, 12599), (2051, 9761)]