28798281

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{769}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 45584000

約数和(自身を除く): 16785719

約数列:

[1, 3, 9, 19, 27, 57, 73, 171, 219, 513, 657, 769, 1387, 1971, 2307, 4161, 6921, 12483, 14611, 20763, 37449, 43833, 56137, 131499, 168411, 394497, 505233, 1066603, 1515699, 3199809, 9599427, 28798281]

約数ペア:

[(1, 28798281), (3, 9599427), (9, 3199809), (19, 1515699), (27, 1066603), (57, 505233), (73, 394497), (171, 168411), (219, 131499), (513, 56137), (657, 43833), (769, 37449), (1387, 20763), (1971, 14611), (2307, 12483), (4161, 6921)]