2188863

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:516

約数の個数: 20

約数和(自身を含む): 3330888

約数和(自身を除く): 1142025

約数列:

[1, 3, 9, 27, 61, 81, 183, 443, 549, 1329, 1647, 3987, 4941, 11961, 27023, 35883, 81069, 243207, 729621, 2188863]

約数ペア:

[(1, 2188863), (3, 729621), (9, 243207), (27, 81069), (61, 35883), (81, 27023), (183, 11961), (443, 4941), (549, 3987), (1329, 1647)]