18945033

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 28060800

約数和(自身を除く): 9115767

約数列:

[1, 3, 19, 29, 57, 73, 87, 157, 219, 471, 551, 1387, 1653, 2117, 2983, 4161, 4553, 6351, 8949, 11461, 13659, 34383, 40223, 86507, 120669, 217759, 259521, 332369, 653277, 997107, 6315011, 18945033]

約数ペア:

[(1, 18945033), (3, 6315011), (19, 997107), (29, 653277), (57, 332369), (73, 259521), (87, 217759), (157, 120669), (219, 86507), (471, 40223), (551, 34383), (1387, 13659), (1653, 11461), (2117, 8949), (2983, 6351), (4161, 4553)]