6990005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6689}}^1$

素因数の和:6724

約数の個数: 16

約数和(自身を含む): 9633600

約数和(自身を除く): 2643595

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 6689, 33445, 73579, 127091, 367895, 635455, 1398001, 6990005]

約数ペア:

[(1, 6990005), (5, 1398001), (11, 635455), (19, 367895), (55, 127091), (95, 73579), (209, 33445), (1045, 6689)]