21087629563

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{11443}}^1$

素因数の和:11744

約数の個数: 48

約数和(自身を含む): 28931164416

約数和(自身を除く): 7843534853

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 263, 539, 637, 1001, 1841, 2893, 3419, 7007, 11443, 12887, 20251, 23933, 37609, 80101, 125873, 141757, 148759, 167531, 263263, 560707, 881111, 1041313, 1636349, 1842841, 3009509, 6167777, 7289191, 11454443, 21066563, 33104599, 39123617, 80181101, 147465941, 231732193, 273865319, 430359787, 1622125351, 1917057233, 3012518509, 21087629563]

約数ペア:

[(1, 21087629563), (7, 3012518509), (11, 1917057233), (13, 1622125351), (49, 430359787), (77, 273865319), (91, 231732193), (143, 147465941), (263, 80181101), (539, 39123617), (637, 33104599), (1001, 21066563), (1841, 11454443), (2893, 7289191), (3419, 6167777), (7007, 3009509), (11443, 1842841), (12887, 1636349), (20251, 1041313), (23933, 881111), (37609, 560707), (80101, 263263), (125873, 167531), (141757, 148759)]