20393956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12527}}^1$

素因数の和:12579

約数の個数: 24

約数和(自身を含む): 39989376

約数和(自身を除く): 19595420

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 12527, 25054, 50108, 137797, 275594, 463499, 551188, 926998, 1853996, 5098489, 10196978, 20393956]

約数ペア:

[(1, 20393956), (2, 10196978), (4, 5098489), (11, 1853996), (22, 926998), (37, 551188), (44, 463499), (74, 275594), (148, 137797), (407, 50108), (814, 25054), (1628, 12527)]