138840478

素因数分解:

$2^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{50341}}^1$

素因数の和:50547

約数の個数: 16

約数和(自身を含む): 239225184

約数和(自身を除く): 100384706

約数列:

[1, 2, 7, 14, 197, 394, 1379, 2758, 50341, 100682, 352387, 704774, 9917177, 19834354, 69420239, 138840478]

約数ペア:

[(1, 138840478), (2, 69420239), (7, 19834354), (14, 9917177), (197, 704774), (394, 352387), (1379, 100682), (2758, 50341)]