66651985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{21193}}^1$

素因数の和:21252

約数の個数: 16

約数和(自身を含む): 86980176

約数和(自身を除く): 20328191

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 21193, 105965, 360281, 784141, 1801405, 3920705, 13330397, 66651985]

約数ペア:

[(1, 66651985), (5, 13330397), (17, 3920705), (37, 1801405), (85, 784141), (185, 360281), (629, 105965), (3145, 21193)]