20689627

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1201}}^1$

素因数の和:1338

約数の個数: 16

約数和(自身を含む): 24924672

約数和(自身を除く): 4235045

約数列:

[1, 7, 23, 107, 161, 749, 1201, 2461, 8407, 17227, 27623, 128507, 193361, 899549, 2955661, 20689627]

約数ペア:

[(1, 20689627), (7, 2955661), (23, 899549), (107, 193361), (161, 128507), (749, 27623), (1201, 17227), (2461, 8407)]