20725691

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 25747680

約数和(自身を除く): 5021989

約数列:

[1, 7, 23, 29, 161, 193, 203, 529, 667, 1351, 3703, 4439, 4669, 5597, 15341, 31073, 39179, 102097, 107387, 128731, 714679, 901117, 2960813, 20725691]

約数ペア:

[(1, 20725691), (7, 2960813), (23, 901117), (29, 714679), (161, 128731), (193, 107387), (203, 102097), (529, 39179), (667, 31073), (1351, 15341), (3703, 5597), (4439, 4669)]