18886945

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{49057}}^1$

素因数の和:49080

約数の個数: 16

約数和(自身を含む): 28257408

約数和(自身を除く): 9370463

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 49057, 245285, 343399, 539627, 1716995, 2698135, 3777389, 18886945]

約数ペア:

[(1, 18886945), (5, 3777389), (7, 2698135), (11, 1716995), (35, 539627), (55, 343399), (77, 245285), (385, 49057)]