278320833

素因数分解:

$3^3\times 7^3\times {\mathrm{41}}^1\times {\mathrm{733}}^1$

素因数の和:804

約数の個数: 64

約数和(自身を含む): 493248000

約数和(自身を除く): 214927167

約数列:

[1, 3, 7, 9, 21, 27, 41, 49, 63, 123, 147, 189, 287, 343, 369, 441, 733, 861, 1029, 1107, 1323, 2009, 2199, 2583, 3087, 5131, 6027, 6597, 7749, 9261, 14063, 15393, 18081, 19791, 30053, 35917, 42189, 46179, 54243, 90159, 107751, 126567, 138537, 210371, 251419, 270477, 323253, 379701, 631113, 754257, 811431, 969759, 1472597, 1893339, 2262771, 4417791, 5680017, 6788313, 10308179, 13253373, 30924537, 39760119, 92773611, 278320833]

約数ペア:

[(1, 278320833), (3, 92773611), (7, 39760119), (9, 30924537), (21, 13253373), (27, 10308179), (41, 6788313), (49, 5680017), (63, 4417791), (123, 2262771), (147, 1893339), (189, 1472597), (287, 969759), (343, 811431), (369, 754257), (441, 631113), (733, 379701), (861, 323253), (1029, 270477), (1107, 251419), (1323, 210371), (2009, 138537), (2199, 126567), (2583, 107751), (3087, 90159), (5131, 54243), (6027, 46179), (6597, 42189), (7749, 35917), (9261, 30053), (14063, 19791), (15393, 18081)]