20021049

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{971}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 30326400

約数和(自身を除く): 10305351

約数列:

[1, 3, 9, 29, 79, 87, 237, 261, 711, 971, 2291, 2913, 6873, 8739, 20619, 28159, 76709, 84477, 230127, 253431, 690381, 2224561, 6673683, 20021049]

約数ペア:

[(1, 20021049), (3, 6673683), (9, 2224561), (29, 690381), (79, 253431), (87, 230127), (237, 84477), (261, 76709), (711, 28159), (971, 20619), (2291, 8739), (2913, 6873)]