19782477

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{809}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 15598323

約数列:

[1, 3, 9, 11, 13, 19, 33, 39, 57, 99, 117, 143, 171, 209, 247, 429, 627, 741, 809, 1287, 1881, 2223, 2427, 2717, 7281, 8151, 8899, 10517, 15371, 24453, 26697, 31551, 46113, 80091, 94653, 115687, 138339, 169081, 199823, 347061, 507243, 599469, 1041183, 1521729, 1798407, 2198053, 6594159, 19782477]

約数ペア:

[(1, 19782477), (3, 6594159), (9, 2198053), (11, 1798407), (13, 1521729), (19, 1041183), (33, 599469), (39, 507243), (57, 347061), (99, 199823), (117, 169081), (143, 138339), (171, 115687), (209, 94653), (247, 80091), (429, 46113), (627, 31551), (741, 26697), (809, 24453), (1287, 15371), (1881, 10517), (2223, 8899), (2427, 8151), (2717, 7281)]