20641485

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1327}}^1$

素因数の和:1413

約数の個数: 32

約数和(自身を含む): 35569152

約数和(自身を除く): 14927667

約数列:

[1, 3, 5, 15, 17, 51, 61, 85, 183, 255, 305, 915, 1037, 1327, 3111, 3981, 5185, 6635, 15555, 19905, 22559, 67677, 80947, 112795, 242841, 338385, 404735, 1214205, 1376099, 4128297, 6880495, 20641485]

約数ペア:

[(1, 20641485), (3, 6880495), (5, 4128297), (15, 1376099), (17, 1214205), (51, 404735), (61, 338385), (85, 242841), (183, 112795), (255, 80947), (305, 67677), (915, 22559), (1037, 19905), (1327, 15555), (3111, 6635), (3981, 5185)]