15121561

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1553}}^1$

素因数の和:1680

約数の個数: 16

約数和(自身を含む): 18797184

約数和(自身を除く): 3675623

約数列:

[1, 7, 13, 91, 107, 749, 1391, 1553, 9737, 10871, 20189, 141323, 166171, 1163197, 2160223, 15121561]

約数ペア:

[(1, 15121561), (7, 2160223), (13, 1163197), (91, 166171), (107, 141323), (749, 20189), (1391, 10871), (1553, 9737)]