20894080249

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{9916507}}^1$

素因数の和:9916564

約数の個数: 12

約数和(自身を含む): 24870602064

約数和(自身を除く): 3976521815

約数列:

[1, 7, 43, 49, 301, 2107, 9916507, 69415549, 426409801, 485908843, 2984868607, 20894080249]

約数ペア:

[(1, 20894080249), (7, 2984868607), (43, 485908843), (49, 426409801), (301, 69415549), (2107, 9916507)]