20803689

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{379}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 12028311

約数列:

[1, 3, 9, 19, 27, 57, 107, 171, 321, 379, 513, 963, 1137, 2033, 2889, 3411, 6099, 7201, 10233, 18297, 21603, 40553, 54891, 64809, 121659, 194427, 364977, 770507, 1094931, 2311521, 6934563, 20803689]

約数ペア:

[(1, 20803689), (3, 6934563), (9, 2311521), (19, 1094931), (27, 770507), (57, 364977), (107, 194427), (171, 121659), (321, 64809), (379, 54891), (513, 40553), (963, 21603), (1137, 18297), (2033, 10233), (2889, 7201), (3411, 6099)]