8641647

素因数分解:

$3^4\times 7^1\times {\mathrm{15241}}^1$

素因数の和:15260

約数の個数: 20

約数和(自身を含む): 14754256

約数和(自身を除く): 6112609

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 15241, 45723, 106687, 137169, 320061, 411507, 960183, 1234521, 2880549, 8641647]

約数ペア:

[(1, 8641647), (3, 2880549), (7, 1234521), (9, 960183), (21, 411507), (27, 320061), (63, 137169), (81, 106687), (189, 45723), (567, 15241)]