21921904

素因数分解:

$2^4\times {\mathrm{439}}^1\times {\mathrm{3121}}^1$

素因数の和:3568

約数の個数: 20

約数和(自身を含む): 42584080

約数和(自身を除く): 20662176

約数列:

[1, 2, 4, 8, 16, 439, 878, 1756, 3121, 3512, 6242, 7024, 12484, 24968, 49936, 1370119, 2740238, 5480476, 10960952, 21921904]

約数ペア:

[(1, 21921904), (2, 10960952), (4, 5480476), (8, 2740238), (16, 1370119), (439, 49936), (878, 24968), (1756, 12484), (3121, 7024), (3512, 6242)]