6881021

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{389}}^1$

素因数の和:441

約数の個数: 18

約数和(自身を含む): 8469630

約数和(自身を除く): 1588609

約数列:

[1, 7, 19, 49, 133, 361, 389, 931, 2527, 2723, 7391, 17689, 19061, 51737, 140429, 362159, 983003, 6881021]

約数ペア:

[(1, 6881021), (7, 983003), (19, 362159), (49, 140429), (133, 51737), (361, 19061), (389, 17689), (931, 7391), (2527, 2723)]