21521766

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{4789}}^1$

素因数の和:4908

約数の個数: 32

約数和(自身を含む): 49662720

約数和(自身を除く): 28140954

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 107, 214, 321, 642, 749, 1498, 2247, 4494, 4789, 9578, 14367, 28734, 33523, 67046, 100569, 201138, 512423, 1024846, 1537269, 3074538, 3586961, 7173922, 10760883, 21521766]

約数ペア:

[(1, 21521766), (2, 10760883), (3, 7173922), (6, 3586961), (7, 3074538), (14, 1537269), (21, 1024846), (42, 512423), (107, 201138), (214, 100569), (321, 67046), (642, 33523), (749, 28734), (1498, 14367), (2247, 9578), (4494, 4789)]