28777761

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 47523840

約数和(自身を除く): 18746079

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 81, 171, 207, 243, 271, 437, 513, 621, 813, 1311, 1539, 1863, 2439, 3933, 4617, 5149, 5589, 6233, 7317, 11799, 15447, 18699, 21951, 35397, 46341, 56097, 65853, 106191, 118427, 139023, 168291, 355281, 417069, 504873, 1065843, 1251207, 1514619, 3197529, 9592587, 28777761]

約数ペア:

[(1, 28777761), (3, 9592587), (9, 3197529), (19, 1514619), (23, 1251207), (27, 1065843), (57, 504873), (69, 417069), (81, 355281), (171, 168291), (207, 139023), (243, 118427), (271, 106191), (437, 65853), (513, 56097), (621, 46341), (813, 35397), (1311, 21951), (1539, 18699), (1863, 15447), (2439, 11799), (3933, 7317), (4617, 6233), (5149, 5589)]