2019394881

素因数分解:

$3^7\times 7^1\times {\mathrm{131909}}^1$

素因数の和:131937

約数の個数: 32

約数和(自身を含む): 3461318400

約数和(自身を除く): 1441923519

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 2187, 5103, 15309, 131909, 395727, 923363, 1187181, 2770089, 3561543, 8310267, 10684629, 24930801, 32053887, 74792403, 96161661, 224377209, 288484983, 673131627, 2019394881]

約数ペア:

[(1, 2019394881), (3, 673131627), (7, 288484983), (9, 224377209), (21, 96161661), (27, 74792403), (63, 32053887), (81, 24930801), (189, 10684629), (243, 8310267), (567, 3561543), (729, 2770089), (1701, 1187181), (2187, 923363), (5103, 395727), (15309, 131909)]