20375999

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{6661}}^1$

素因数の和:6710

約数の個数: 16

約数和(自身を含む): 25582080

約数和(自身を除く): 5206081

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 6661, 46627, 126559, 153203, 885913, 1072421, 2910857, 20375999]

約数ペア:

[(1, 20375999), (7, 2910857), (19, 1072421), (23, 885913), (133, 153203), (161, 126559), (437, 46627), (3059, 6661)]