2121217

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 2620800

約数和(自身を除く): 499583

約数列:

[1, 7, 19, 41, 133, 287, 389, 779, 2723, 5453, 7391, 15949, 51737, 111643, 303031, 2121217]

約数ペア:

[(1, 2121217), (7, 303031), (19, 111643), (41, 51737), (133, 15949), (287, 7391), (389, 5453), (779, 2723)]