21000388695

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{9533}}^1$

素因数の和:9657

約数の個数: 96

約数和(自身を含む): 40198394880

約数和(自身を除く): 19198006185

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 79, 143, 165, 169, 195, 237, 395, 429, 507, 715, 845, 869, 1027, 1185, 1859, 2145, 2535, 2607, 3081, 4345, 5135, 5577, 9295, 9533, 11297, 13035, 13351, 15405, 27885, 28599, 33891, 40053, 47665, 56485, 66755, 104863, 123929, 142995, 146861, 169455, 200265, 314589, 371787, 440583, 524315, 619645, 734305, 753107, 1363219, 1572945, 1611077, 1858935, 2202915, 2259321, 3765535, 4089657, 4833231, 6816095, 8055385, 8284177, 9790391, 11296605, 17721847, 20448285, 24166155, 24852531, 29371173, 41420885, 48951955, 53165541, 88609235, 107694301, 124262655, 127275083, 146855865, 265827705, 323082903, 381825249, 538471505, 636375415, 1400025913, 1615414515, 1909126245, 4200077739, 7000129565, 21000388695]

約数ペア:

[(1, 21000388695), (3, 7000129565), (5, 4200077739), (11, 1909126245), (13, 1615414515), (15, 1400025913), (33, 636375415), (39, 538471505), (55, 381825249), (65, 323082903), (79, 265827705), (143, 146855865), (165, 127275083), (169, 124262655), (195, 107694301), (237, 88609235), (395, 53165541), (429, 48951955), (507, 41420885), (715, 29371173), (845, 24852531), (869, 24166155), (1027, 20448285), (1185, 17721847), (1859, 11296605), (2145, 9790391), (2535, 8284177), (2607, 8055385), (3081, 6816095), (4345, 4833231), (5135, 4089657), (5577, 3765535), (9295, 2259321), (9533, 2202915), (11297, 1858935), (13035, 1611077), (13351, 1572945), (15405, 1363219), (27885, 753107), (28599, 734305), (33891, 619645), (40053, 524315), (47665, 440583), (56485, 371787), (66755, 314589), (104863, 200265), (123929, 169455), (142995, 146861)]