20784404

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16087}}^1$

素因数の和:16127

約数の個数: 24

約数和(自身を含む): 40541760

約数和(自身を除く): 19757356

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16087, 32174, 64348, 273479, 305653, 546958, 611306, 1093916, 1222612, 5196101, 10392202, 20784404]

約数ペア:

[(1, 20784404), (2, 10392202), (4, 5196101), (17, 1222612), (19, 1093916), (34, 611306), (38, 546958), (68, 305653), (76, 273479), (323, 64348), (646, 32174), (1292, 16087)]