19986458

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{5393}}^1$

素因数の和:5521

約数の個数: 16

約数和(自身を含む): 32040360

約数和(自身を除く): 12053902

約数列:

[1, 2, 17, 34, 109, 218, 1853, 3706, 5393, 10786, 91681, 183362, 587837, 1175674, 9993229, 19986458]

約数ペア:

[(1, 19986458), (2, 9993229), (17, 1175674), (34, 587837), (109, 183362), (218, 91681), (1853, 10786), (3706, 5393)]