3891321

素因数分解:

$3^4\times 7^1\times {\mathrm{6863}}^1$

素因数の和:6882

約数の個数: 20

約数和(自身を含む): 6644352

約数和(自身を除く): 2753031

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 6863, 20589, 48041, 61767, 144123, 185301, 432369, 555903, 1297107, 3891321]

約数ペア:

[(1, 3891321), (3, 1297107), (7, 555903), (9, 432369), (21, 185301), (27, 144123), (63, 61767), (81, 48041), (189, 20589), (567, 6863)]