19986815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{2833}}^1$

素因数の和:2938

約数の個数: 16

約数和(自身を含む): 25710048

約数和(自身を除く): 5723233

約数列:

[1, 5, 17, 83, 85, 415, 1411, 2833, 7055, 14165, 48161, 235139, 240805, 1175695, 3997363, 19986815]

約数ペア:

[(1, 19986815), (5, 3997363), (17, 1175695), (83, 240805), (85, 235139), (415, 48161), (1411, 14165), (2833, 7055)]