20709957

素因数分解:

$3^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:692

約数の個数: 16

約数和(自身を含む): 28123200

約数和(自身を除く): 7413243

約数列:

[1, 3, 107, 149, 321, 433, 447, 1299, 15943, 46331, 47829, 64517, 138993, 193551, 6903319, 20709957]

約数ペア:

[(1, 20709957), (3, 6903319), (107, 193551), (149, 138993), (321, 64517), (433, 47829), (447, 46331), (1299, 15943)]