20587756

素因数分解:

$2^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2861}}^1$

素因数の和:3129

約数の個数: 24

約数和(自身を含む): 41350176

約数和(自身を除く): 20762420

約数列:

[1, 2, 4, 7, 14, 28, 257, 514, 1028, 1799, 2861, 3598, 5722, 7196, 11444, 20027, 40054, 80108, 735277, 1470554, 2941108, 5146939, 10293878, 20587756]

約数ペア:

[(1, 20587756), (2, 10293878), (4, 5146939), (7, 2941108), (14, 1470554), (28, 735277), (257, 80108), (514, 40054), (1028, 20027), (1799, 11444), (2861, 7196), (3598, 5722)]