18438965

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4093}}^1$

素因数の和:4168

約数の個数: 16

約数和(自身を含む): 23876208

約数和(自身を除く): 5437243

約数列:

[1, 5, 17, 53, 85, 265, 901, 4093, 4505, 20465, 69581, 216929, 347905, 1084645, 3687793, 18438965]

約数ペア:

[(1, 18438965), (5, 3687793), (17, 1084645), (53, 347905), (85, 216929), (265, 69581), (901, 20465), (4093, 4505)]