311293359

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{601}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 512759520

約数和(自身を除く): 201466161

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 233, 247, 601, 699, 741, 1803, 2097, 2223, 3029, 4427, 5409, 7813, 9087, 11419, 13281, 23439, 27261, 34257, 39843, 57551, 70317, 102771, 140033, 148447, 172653, 420099, 445341, 517959, 1260297, 1336023, 1820429, 2660627, 5461287, 7981881, 16383861, 23945643, 34588151, 103764453, 311293359]

約数ペア:

[(1, 311293359), (3, 103764453), (9, 34588151), (13, 23945643), (19, 16383861), (39, 7981881), (57, 5461287), (117, 2660627), (171, 1820429), (233, 1336023), (247, 1260297), (601, 517959), (699, 445341), (741, 420099), (1803, 172653), (2097, 148447), (2223, 140033), (3029, 102771), (4427, 70317), (5409, 57551), (7813, 39843), (9087, 34257), (11419, 27261), (13281, 23439)]