20784250865

素因数分解:

$5^1\times 7^2\times {\mathrm{439}}^1\times {\mathrm{193243}}^1$

素因数の和:193701

約数の個数: 24

約数和(自身を含む): 29079357120

約数和(自身を除く): 8295106255

約数列:

[1, 5, 7, 35, 49, 245, 439, 2195, 3073, 15365, 21511, 107555, 193243, 966215, 1352701, 6763505, 9468907, 47344535, 84833677, 424168385, 593835739, 2969178695, 4156850173, 20784250865]

約数ペア:

[(1, 20784250865), (5, 4156850173), (7, 2969178695), (35, 593835739), (49, 424168385), (245, 84833677), (439, 47344535), (2195, 9468907), (3073, 6763505), (15365, 1352701), (21511, 966215), (107555, 193243)]