408936987

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 640224000

約数和(自身を除く): 231287013

約数列:

[1, 3, 9, 23, 37, 69, 107, 111, 207, 321, 333, 499, 851, 963, 1497, 2461, 2553, 3959, 4491, 7383, 7659, 11477, 11877, 18463, 22149, 34431, 35631, 53393, 55389, 91057, 103293, 160179, 166167, 273171, 424649, 480537, 819513, 1228039, 1273947, 1975541, 3684117, 3821841, 5926623, 11052351, 17779869, 45437443, 136312329, 408936987]

約数ペア:

[(1, 408936987), (3, 136312329), (9, 45437443), (23, 17779869), (37, 11052351), (69, 5926623), (107, 3821841), (111, 3684117), (207, 1975541), (321, 1273947), (333, 1228039), (499, 819513), (851, 480537), (963, 424649), (1497, 273171), (2461, 166167), (2553, 160179), (3959, 103293), (4491, 91057), (7383, 55389), (7659, 53393), (11477, 35631), (11877, 34431), (18463, 22149)]