20958539

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4259}}^1$

素因数の和:4322

約数の個数: 16

約数和(自身を含む): 25900800

約数和(自身を除く): 4942261

約数列:

[1, 7, 19, 37, 133, 259, 703, 4259, 4921, 29813, 80921, 157583, 566447, 1103081, 2994077, 20958539]

約数ペア:

[(1, 20958539), (7, 2994077), (19, 1103081), (37, 566447), (133, 157583), (259, 80921), (703, 29813), (4259, 4921)]