1389507

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:658

約数の個数: 16

約数和(自身を含む): 2138112

約数和(自身を除く): 748605

約数列:

[1, 3, 7, 21, 127, 381, 521, 889, 1563, 2667, 3647, 10941, 66167, 198501, 463169, 1389507]

約数ペア:

[(1, 1389507), (3, 463169), (7, 198501), (21, 66167), (127, 10941), (381, 3647), (521, 2667), (889, 1563)]