21063249

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1471}}^1$

素因数の和:1557

約数の個数: 24

約数和(自身を含む): 31995392

約数和(自身を除く): 10932143

約数列:

[1, 3, 9, 37, 43, 111, 129, 333, 387, 1471, 1591, 4413, 4773, 13239, 14319, 54427, 63253, 163281, 189759, 489843, 569277, 2340361, 7021083, 21063249]

約数ペア:

[(1, 21063249), (3, 7021083), (9, 2340361), (37, 569277), (43, 489843), (111, 189759), (129, 163281), (333, 63253), (387, 54427), (1471, 14319), (1591, 13239), (4413, 4773)]