19447281

素因数分解:

$3^2\times 7^1\times {\mathrm{467}}^1\times {\mathrm{661}}^1$

素因数の和:1141

約数の個数: 24

約数和(自身を含む): 32220864

約数和(自身を除く): 12773583

約数列:

[1, 3, 7, 9, 21, 63, 467, 661, 1401, 1983, 3269, 4203, 4627, 5949, 9807, 13881, 29421, 41643, 308687, 926061, 2160809, 2778183, 6482427, 19447281]

約数ペア:

[(1, 19447281), (3, 6482427), (7, 2778183), (9, 2160809), (21, 926061), (63, 308687), (467, 41643), (661, 29421), (1401, 13881), (1983, 9807), (3269, 5949), (4203, 4627)]