20199897981

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{967}}^1\times {\mathrm{136531}}^1$

素因数の和:137521

約数の個数: 24

約数和(自身を含む): 30926136384

約数和(自身を除く): 10726238403

約数列:

[1, 3, 9, 17, 51, 153, 967, 2901, 8703, 16439, 49317, 136531, 147951, 409593, 1228779, 2321027, 6963081, 20889243, 132025477, 396076431, 1188229293, 2244433109, 6733299327, 20199897981]

約数ペア:

[(1, 20199897981), (3, 6733299327), (9, 2244433109), (17, 1188229293), (51, 396076431), (153, 132025477), (967, 20889243), (2901, 6963081), (8703, 2321027), (16439, 1228779), (49317, 409593), (136531, 147951)]