20802968319

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1381}}^1\times {\mathrm{19387}}^1$

素因数の和:20815

約数の個数: 32

約数和(自身を含む): 32581766656

約数和(自身を除く): 11778798337

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 1381, 4143, 9667, 19387, 29001, 51097, 58161, 135709, 153291, 357679, 407127, 717319, 1073037, 2151957, 5021233, 15063699, 26773447, 80320341, 187414129, 562242387, 990617539, 2971852617, 6934322773, 20802968319]

約数ペア:

[(1, 20802968319), (3, 6934322773), (7, 2971852617), (21, 990617539), (37, 562242387), (111, 187414129), (259, 80320341), (777, 26773447), (1381, 15063699), (4143, 5021233), (9667, 2151957), (19387, 1073037), (29001, 717319), (51097, 407127), (58161, 357679), (135709, 153291)]