19042639

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1109}}^1$

素因数の和:1350

約数の個数: 16

約数和(自身を含む): 23869440

約数和(自身を除く): 4826801

約数列:

[1, 7, 11, 77, 223, 1109, 1561, 2453, 7763, 12199, 17171, 85393, 247307, 1731149, 2720377, 19042639]

約数ペア:

[(1, 19042639), (7, 2720377), (11, 1731149), (77, 247307), (223, 85393), (1109, 17171), (1561, 12199), (2453, 7763)]