20100619

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6367}}^1$

素因数の和:6426

約数の個数: 16

約数和(自身を含む): 25675776

約数和(自身を除く): 5575157

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6367, 44569, 70037, 261047, 490259, 1827329, 2871517, 20100619]

約数ペア:

[(1, 20100619), (7, 2871517), (11, 1827329), (41, 490259), (77, 261047), (287, 70037), (451, 44569), (3157, 6367)]