19999055

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6359}}^1$

素因数の和:6418

約数の個数: 16

約数和(自身を含む): 26101440

約数和(自身を除く): 6102385

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 6359, 31795, 108103, 235283, 540515, 1176415, 3999811, 19999055]

約数ペア:

[(1, 19999055), (5, 3999811), (17, 1176415), (37, 540515), (85, 235283), (185, 108103), (629, 31795), (3145, 6359)]