19958470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{285121}}^1$

素因数の和:285135

約数の個数: 16

約数和(自身を含む): 41057568

約数和(自身を除く): 21099098

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 285121, 570242, 1425605, 1995847, 2851210, 3991694, 9979235, 19958470]

約数ペア:

[(1, 19958470), (2, 9979235), (5, 3991694), (7, 2851210), (10, 1995847), (14, 1425605), (35, 570242), (70, 285121)]