21255448

素因数分解:

$2^3\times {\mathrm{421}}^1\times {\mathrm{6311}}^1$

素因数の和:6738

約数の個数: 16

約数和(自身を含む): 39954960

約数和(自身を除く): 18699512

約数列:

[1, 2, 4, 8, 421, 842, 1684, 3368, 6311, 12622, 25244, 50488, 2656931, 5313862, 10627724, 21255448]

約数ペア:

[(1, 21255448), (2, 10627724), (4, 5313862), (8, 2656931), (421, 50488), (842, 25244), (1684, 12622), (3368, 6311)]