20215214967

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1\times {\mathrm{1021}}^1$

素因数の和:1639

約数の個数: 32

約数和(自身を含む): 27448336384

約数和(自身を除く): 7233121417

約数列:

[1, 3, 127, 157, 331, 381, 471, 993, 1021, 3063, 19939, 42037, 51967, 59817, 126111, 129667, 155901, 160297, 337951, 389001, 480891, 1013853, 6599809, 19799427, 20357719, 42919777, 53058307, 61073157, 128759331, 159174921, 6738404989, 20215214967]

約数ペア:

[(1, 20215214967), (3, 6738404989), (127, 159174921), (157, 128759331), (331, 61073157), (381, 53058307), (471, 42919777), (993, 20357719), (1021, 19799427), (3063, 6599809), (19939, 1013853), (42037, 480891), (51967, 389001), (59817, 337951), (126111, 160297), (129667, 155901)]