20553459

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21211}}^1$

素因数の和:21250

約数の個数: 16

約数和(自身を含む): 30545280

約数和(自身を除く): 9991821

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21211, 63633, 360587, 403009, 1081761, 1209027, 6851153, 20553459]

約数ペア:

[(1, 20553459), (3, 6851153), (17, 1209027), (19, 1081761), (51, 403009), (57, 360587), (323, 63633), (969, 21211)]