20154687021

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2519021}}^1$

素因数の和:2519161

約数の個数: 24

約数和(自身を含む): 33533220864

約数和(自身を除く): 13378533843

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 8001, 2519021, 7557063, 17633147, 22671189, 52899441, 158698323, 319915667, 959747001, 2239409669, 2879241003, 6718229007, 20154687021]

約数ペア:

[(1, 20154687021), (3, 6718229007), (7, 2879241003), (9, 2239409669), (21, 959747001), (63, 319915667), (127, 158698323), (381, 52899441), (889, 22671189), (1143, 17633147), (2667, 7557063), (8001, 2519021)]