20297403

素因数分解:

$3^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1619}}^1$

素因数の和:1831

約数の個数: 24

約数和(自身を含む): 33696000

約数和(自身を除く): 13398597

約数列:

[1, 3, 7, 9, 21, 63, 199, 597, 1393, 1619, 1791, 4179, 4857, 11333, 12537, 14571, 33999, 101997, 322181, 966543, 2255267, 2899629, 6765801, 20297403]

約数ペア:

[(1, 20297403), (3, 6765801), (7, 2899629), (9, 2255267), (21, 966543), (63, 322181), (199, 101997), (597, 33999), (1393, 14571), (1619, 12537), (1791, 11333), (4179, 4857)]