20998876

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16253}}^1$

素因数の和:16293

約数の個数: 24

約数和(自身を含む): 40960080

約数和(自身を除く): 19961204

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16253, 32506, 65012, 276301, 308807, 552602, 617614, 1105204, 1235228, 5249719, 10499438, 20998876]

約数ペア:

[(1, 20998876), (2, 10499438), (4, 5249719), (17, 1235228), (19, 1105204), (34, 617614), (38, 552602), (68, 308807), (76, 276301), (323, 65012), (646, 32506), (1292, 16253)]