20191612

素因数分解:

$2^2\times 7^1\times {\mathrm{721129}}^1$

素因数の和:721140

約数の個数: 12

約数和(自身を含む): 40383280

約数和(自身を除く): 20191668

約数列:

[1, 2, 4, 7, 14, 28, 721129, 1442258, 2884516, 5047903, 10095806, 20191612]

約数ペア:

[(1, 20191612), (2, 10095806), (4, 5047903), (7, 2884516), (14, 1442258), (28, 721129)]