20732019

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 35750400

約数和(自身を除く): 15018381

約数列:

[1, 3, 7, 11, 21, 33, 41, 77, 121, 123, 199, 231, 287, 363, 451, 597, 847, 861, 1353, 1393, 2189, 2541, 3157, 4179, 4961, 6567, 8159, 9471, 14883, 15323, 24079, 24477, 34727, 45969, 57113, 72237, 89749, 104181, 168553, 171339, 269247, 505659, 628243, 987239, 1884729, 2961717, 6910673, 20732019]

約数ペア:

[(1, 20732019), (3, 6910673), (7, 2961717), (11, 1884729), (21, 987239), (33, 628243), (41, 505659), (77, 269247), (121, 171339), (123, 168553), (199, 104181), (231, 89749), (287, 72237), (363, 57113), (451, 45969), (597, 34727), (847, 24477), (861, 24079), (1353, 15323), (1393, 14883), (2189, 9471), (2541, 8159), (3157, 6567), (4179, 4961)]