21386576

素因数分解:

$2^4\times {\mathrm{269}}^1\times {\mathrm{4969}}^1$

素因数の和:5246

約数の個数: 20

約数和(自身を含む): 41598900

約数和(自身を除く): 20212324

約数列:

[1, 2, 4, 8, 16, 269, 538, 1076, 2152, 4304, 4969, 9938, 19876, 39752, 79504, 1336661, 2673322, 5346644, 10693288, 21386576]

約数ペア:

[(1, 21386576), (2, 10693288), (4, 5346644), (8, 2673322), (16, 1336661), (269, 79504), (538, 39752), (1076, 19876), (2152, 9938), (4304, 4969)]