20512382997

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1\times {\mathrm{4373}}^1$

素因数の和:4989

約数の個数: 32

約数和(自身を含む): 28793657088

約数和(自身を除く): 8281274091

約数列:

[1, 3, 23, 69, 157, 433, 471, 1299, 3611, 4373, 9959, 10833, 13119, 29877, 67981, 100579, 203943, 301737, 686561, 1563563, 1893509, 2059683, 4690689, 5680527, 15790903, 43550707, 47372709, 130652121, 297280913, 891842739, 6837460999, 20512382997]

約数ペア:

[(1, 20512382997), (3, 6837460999), (23, 891842739), (69, 297280913), (157, 130652121), (433, 47372709), (471, 43550707), (1299, 15790903), (3611, 5680527), (4373, 4690689), (9959, 2059683), (10833, 1893509), (13119, 1563563), (29877, 686561), (67981, 301737), (100579, 203943)]