21000978839

素因数分解:

${\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{431}}^1\times {\mathrm{4649}}^1$

素因数の和:5350

約数の個数: 16

約数和(自身を含む): 21598617600

約数和(自身を除く): 597638761

約数列:

[1, 47, 223, 431, 4649, 10481, 20257, 96113, 218503, 1036727, 2003719, 4517311, 48726169, 94174793, 446829337, 21000978839]

約数ペア:

[(1, 21000978839), (47, 446829337), (223, 94174793), (431, 48726169), (4649, 4517311), (10481, 2003719), (20257, 1036727), (96113, 218503)]