2991321

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:265

約数の個数: 24

約数和(自身を含む): 4559880

約数和(自身を除く): 1568559

約数列:

[1, 3, 9, 29, 73, 87, 157, 219, 261, 471, 657, 1413, 2117, 4553, 6351, 11461, 13659, 19053, 34383, 40977, 103149, 332369, 997107, 2991321]

約数ペア:

[(1, 2991321), (3, 997107), (9, 332369), (29, 103149), (73, 40977), (87, 34383), (157, 19053), (219, 13659), (261, 11461), (471, 6351), (657, 4553), (1413, 2117)]