21807957249

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{739}}^1\times {\mathrm{252223}}^1$

素因数の和:252981

約数の個数: 24

約数和(自身を含む): 33969528320

約数和(自身を除く): 12161571071

約数列:

[1, 3, 9, 13, 39, 117, 739, 2217, 6651, 9607, 28821, 86463, 252223, 756669, 2270007, 3278899, 9836697, 29510091, 186392797, 559178391, 1677535173, 2423106361, 7269319083, 21807957249]

約数ペア:

[(1, 21807957249), (3, 7269319083), (9, 2423106361), (13, 1677535173), (39, 559178391), (117, 186392797), (739, 29510091), (2217, 9836697), (6651, 3278899), (9607, 2270007), (28821, 756669), (86463, 252223)]