205514654079

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{515074321}}^1$

素因数の和:515074350

約数の個数: 16

約数和(自身を含む): 329647566080

約数和(自身を除く): 124132912001

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 515074321, 1545222963, 3605520247, 9786412099, 10816560741, 29359236297, 68504884693, 205514654079]

約数ペア:

[(1, 205514654079), (3, 68504884693), (7, 29359236297), (19, 10816560741), (21, 9786412099), (57, 3605520247), (133, 1545222963), (399, 515074321)]