20804937

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1\times {\mathrm{641}}^1$

素因数の和:1024

約数の個数: 16

約数和(自身を含む): 28761600

約数和(自身を除く): 7956663

約数列:

[1, 3, 31, 93, 349, 641, 1047, 1923, 10819, 19871, 32457, 59613, 223709, 671127, 6934979, 20804937]

約数ペア:

[(1, 20804937), (3, 6934979), (31, 671127), (93, 223709), (349, 59613), (641, 32457), (1047, 19871), (1923, 10819)]