2021491947

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1259}}^1\times {\mathrm{1657}}^1$

素因数の和:2955

約数の個数: 32

約数和(自身を含む): 3008275200

約数和(自身を除く): 986783253

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 1259, 1657, 3777, 4971, 21403, 23921, 28169, 31483, 64209, 71763, 84507, 94449, 406657, 535211, 1219971, 1605633, 2086163, 6258489, 35464771, 39637097, 106394313, 118911291, 673830649, 2021491947]

約数ペア:

[(1, 2021491947), (3, 673830649), (17, 118911291), (19, 106394313), (51, 39637097), (57, 35464771), (323, 6258489), (969, 2086163), (1259, 1605633), (1657, 1219971), (3777, 535211), (4971, 406657), (21403, 94449), (23921, 84507), (28169, 71763), (31483, 64209)]