19979337

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{12043}}^1$

素因数の和:12132

約数の個数: 16

約数和(自身を含む): 30832640

約数和(自身を除く): 10853303

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 12043, 36129, 84301, 252903, 951397, 2854191, 6659779, 19979337]

約数ペア:

[(1, 19979337), (3, 6659779), (7, 2854191), (21, 951397), (79, 252903), (237, 84301), (553, 36129), (1659, 12043)]