28690245

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{14827}}^1$

素因数の和:14881

約数の個数: 24

約数和(自身を含む): 50889696

約数和(自身を除く): 22199451

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 14827, 44481, 74135, 133443, 222405, 637561, 667215, 1912683, 3187805, 5738049, 9563415, 28690245]

約数ペア:

[(1, 28690245), (3, 9563415), (5, 5738049), (9, 3187805), (15, 1912683), (43, 667215), (45, 637561), (129, 222405), (215, 133443), (387, 74135), (645, 44481), (1935, 14827)]