21000496978

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{113}}^1\times {\mathrm{269}}^1\times {\mathrm{653}}^1$

素因数の和:1083

約数の個数: 48

約数和(自身を含む): 33395869080

約数和(自身を除く): 12395372102

約数列:

[1, 2, 23, 46, 113, 226, 269, 529, 538, 653, 1058, 1306, 2599, 5198, 6187, 12374, 15019, 30038, 30397, 59777, 60794, 73789, 119554, 142301, 147578, 175657, 284602, 345437, 351314, 690874, 699131, 1398262, 1697147, 3394294, 4040111, 8080222, 16080013, 19849241, 32160026, 39034381, 39698482, 78068762, 92922553, 185845106, 456532543, 913065086, 10500248489, 21000496978]

約数ペア:

[(1, 21000496978), (2, 10500248489), (23, 913065086), (46, 456532543), (113, 185845106), (226, 92922553), (269, 78068762), (529, 39698482), (538, 39034381), (653, 32160026), (1058, 19849241), (1306, 16080013), (2599, 8080222), (5198, 4040111), (6187, 3394294), (12374, 1697147), (15019, 1398262), (30038, 699131), (30397, 690874), (59777, 351314), (60794, 345437), (73789, 284602), (119554, 175657), (142301, 147578)]