209408073

素因数分解:

$3^1\times 7^1\times {\mathrm{1553}}^1\times {\mathrm{6421}}^1$

素因数の和:7984

約数の個数: 16

約数和(自身を含む): 319353216

約数和(自身を除く): 109945143

約数列:

[1, 3, 7, 21, 1553, 4659, 6421, 10871, 19263, 32613, 44947, 134841, 9971813, 29915439, 69802691, 209408073]

約数ペア:

[(1, 209408073), (3, 69802691), (7, 29915439), (21, 9971813), (1553, 134841), (4659, 44947), (6421, 32613), (10871, 19263)]