19907090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{284387}}^1$

素因数の和:284401

約数の個数: 16

約数和(自身を含む): 40951872

約数和(自身を除く): 21044782

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 284387, 568774, 1421935, 1990709, 2843870, 3981418, 9953545, 19907090]

約数ペア:

[(1, 19907090), (2, 9953545), (5, 3981418), (7, 2843870), (10, 1990709), (14, 1421935), (35, 568774), (70, 284387)]