19003089

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{661}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 29805888

約数和(自身を除く): 10802799

約数列:

[1, 3, 7, 21, 37, 111, 259, 661, 777, 1369, 1983, 4107, 4627, 9583, 13881, 24457, 28749, 73371, 171199, 513597, 904909, 2714727, 6334363, 19003089]

約数ペア:

[(1, 19003089), (3, 6334363), (7, 2714727), (21, 904909), (37, 513597), (111, 171199), (259, 73371), (661, 28749), (777, 24457), (1369, 13881), (1983, 9583), (4107, 4627)]