20339739

素因数分解:

$3^2\times 7^1\times {\mathrm{499}}^1\times {\mathrm{647}}^1$

素因数の和:1159

約数の個数: 24

約数和(自身を含む): 33696000

約数和(自身を除く): 13356261

約数列:

[1, 3, 7, 9, 21, 63, 499, 647, 1497, 1941, 3493, 4491, 4529, 5823, 10479, 13587, 31437, 40761, 322853, 968559, 2259971, 2905677, 6779913, 20339739]

約数ペア:

[(1, 20339739), (3, 6779913), (7, 2905677), (9, 2259971), (21, 968559), (63, 322853), (499, 40761), (647, 31437), (1497, 13587), (1941, 10479), (3493, 5823), (4491, 4529)]