816428403

素因数分解:

$3^4\times 7^1\times {\mathrm{1439909}}^1$

素因数の和:1439928

約数の個数: 20

約数和(自身を含む): 1393832880

約数和(自身を除く): 577404477

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1439909, 4319727, 10079363, 12959181, 30238089, 38877543, 90714267, 116632629, 272142801, 816428403]

約数ペア:

[(1, 816428403), (3, 272142801), (7, 116632629), (9, 90714267), (21, 38877543), (27, 30238089), (63, 12959181), (81, 10079363), (189, 4319727), (567, 1439909)]