17971389

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{1747}}^1$

素因数の和:1886

約数の個数: 20

約数和(自身を含む): 27073024

約数和(自身を除く): 9101635

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 1747, 3429, 5241, 10287, 15723, 47169, 141507, 221869, 665607, 1996821, 5990463, 17971389]

約数ペア:

[(1, 17971389), (3, 5990463), (9, 1996821), (27, 665607), (81, 221869), (127, 141507), (381, 47169), (1143, 15723), (1747, 10287), (3429, 5241)]