28820961

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{523}}^1$

素因数の和:702

約数の個数: 32

約数和(自身を含む): 46363520

約数和(自身を除く): 17542559

約数列:

[1, 3, 9, 13, 27, 39, 117, 157, 351, 471, 523, 1413, 1569, 2041, 4239, 4707, 6123, 6799, 14121, 18369, 20397, 55107, 61191, 82111, 183573, 246333, 738999, 1067443, 2216997, 3202329, 9606987, 28820961]

約数ペア:

[(1, 28820961), (3, 9606987), (9, 3202329), (13, 2216997), (27, 1067443), (39, 738999), (117, 246333), (157, 183573), (351, 82111), (471, 61191), (523, 55107), (1413, 20397), (1569, 18369), (2041, 14121), (4239, 6799), (4707, 6123)]