664851908

素因数分解:

$2^2\times 7^1\times {\mathrm{2221}}^1\times {\mathrm{10691}}^1$

素因数の和:12923

約数の個数: 24

約数和(自身を含む): 1330426944

約数和(自身を除く): 665575036

約数列:

[1, 2, 4, 7, 14, 28, 2221, 4442, 8884, 10691, 15547, 21382, 31094, 42764, 62188, 74837, 149674, 299348, 23744711, 47489422, 94978844, 166212977, 332425954, 664851908]

約数ペア:

[(1, 664851908), (2, 332425954), (4, 166212977), (7, 94978844), (14, 47489422), (28, 23744711), (2221, 299348), (4442, 149674), (8884, 74837), (10691, 62188), (15547, 42764), (21382, 31094)]