16956989

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 20793600

約数和(自身を除く): 3836611

約数列:

[1, 7, 37, 47, 49, 199, 259, 329, 1393, 1739, 1813, 2303, 7363, 9353, 9751, 12173, 51541, 65471, 85211, 346061, 360787, 458297, 2422427, 16956989]

約数ペア:

[(1, 16956989), (7, 2422427), (37, 458297), (47, 360787), (49, 346061), (199, 85211), (259, 65471), (329, 51541), (1393, 12173), (1739, 9751), (1813, 9353), (2303, 7363)]