20785913631

素因数分解:

$3^3\times 7^2\times {\mathrm{727}}^1\times {\mathrm{21611}}^1$

素因数の和:22361

約数の個数: 48

約数和(自身を含む): 35872462080

約数和(自身を除く): 15086548449

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 727, 1323, 2181, 5089, 6543, 15267, 19629, 21611, 35623, 45801, 64833, 106869, 137403, 151277, 194499, 320607, 453831, 583497, 961821, 1058939, 1361493, 3176817, 4084479, 9530451, 15711197, 28591353, 47133591, 109978379, 141400773, 329935137, 424202319, 769848653, 989805411, 2309545959, 2969416233, 6928637877, 20785913631]

約数ペア:

[(1, 20785913631), (3, 6928637877), (7, 2969416233), (9, 2309545959), (21, 989805411), (27, 769848653), (49, 424202319), (63, 329935137), (147, 141400773), (189, 109978379), (441, 47133591), (727, 28591353), (1323, 15711197), (2181, 9530451), (5089, 4084479), (6543, 3176817), (15267, 1361493), (19629, 1058939), (21611, 961821), (35623, 583497), (45801, 453831), (64833, 320607), (106869, 194499), (137403, 151277)]