20512954916

素因数分解:

$2^2\times {\mathrm{409}}^1\times {\mathrm{12538481}}^1$

素因数の和:12538894

約数の個数: 12

約数和(自身を含む): 35985443340

約数和(自身を除く): 15472488424

約数列:

[1, 2, 4, 409, 818, 1636, 12538481, 25076962, 50153924, 5128238729, 10256477458, 20512954916]

約数ペア:

[(1, 20512954916), (2, 10256477458), (4, 5128238729), (409, 50153924), (818, 25076962), (1636, 12538481)]