21072592

素因数分解:

$2^4\times {\mathrm{997}}^1\times {\mathrm{1321}}^1$

素因数の和:2326

約数の個数: 20

約数和(自身を含む): 40900036

約数和(自身を除く): 19827444

約数列:

[1, 2, 4, 8, 16, 997, 1321, 1994, 2642, 3988, 5284, 7976, 10568, 15952, 21136, 1317037, 2634074, 5268148, 10536296, 21072592]

約数ペア:

[(1, 21072592), (2, 10536296), (4, 5268148), (8, 2634074), (16, 1317037), (997, 21136), (1321, 15952), (1994, 10568), (2642, 7976), (3988, 5284)]