21056964

素因数分解:

$2^2\times 3^1\times {\mathrm{643}}^1\times {\mathrm{2729}}^1$

素因数の和:3379

約数の個数: 24

約数和(自身を含む): 49227360

約数和(自身を除く): 28170396

約数列:

[1, 2, 3, 4, 6, 12, 643, 1286, 1929, 2572, 2729, 3858, 5458, 7716, 8187, 10916, 16374, 32748, 1754747, 3509494, 5264241, 7018988, 10528482, 21056964]

約数ペア:

[(1, 21056964), (2, 10528482), (3, 7018988), (4, 5264241), (6, 3509494), (12, 1754747), (643, 32748), (1286, 16374), (1929, 10916), (2572, 8187), (2729, 7716), (3858, 5458)]