20397124

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{929}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 39060000

約数和(自身を除く): 18662876

約数列:

[1, 2, 4, 11, 22, 44, 499, 929, 998, 1858, 1996, 3716, 5489, 10219, 10978, 20438, 21956, 40876, 463571, 927142, 1854284, 5099281, 10198562, 20397124]

約数ペア:

[(1, 20397124), (2, 10198562), (4, 5099281), (11, 1854284), (22, 927142), (44, 463571), (499, 40876), (929, 21956), (998, 20438), (1858, 10978), (1996, 10219), (3716, 5489)]