17964531

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 29982720

約数和(自身を除く): 12018189

約数列:

[1, 3, 9, 13, 27, 31, 39, 93, 117, 127, 169, 279, 351, 381, 403, 507, 837, 1143, 1209, 1521, 1651, 3429, 3627, 3937, 4563, 4953, 5239, 10881, 11811, 14859, 15717, 21463, 35433, 44577, 47151, 51181, 64389, 106299, 141453, 153543, 193167, 460629, 579501, 665353, 1381887, 1996059, 5988177, 17964531]

約数ペア:

[(1, 17964531), (3, 5988177), (9, 1996059), (13, 1381887), (27, 665353), (31, 579501), (39, 460629), (93, 193167), (117, 153543), (127, 141453), (169, 106299), (279, 64389), (351, 51181), (381, 47151), (403, 44577), (507, 35433), (837, 21463), (1143, 15717), (1209, 14859), (1521, 11811), (1651, 10881), (3429, 5239), (3627, 4953), (3937, 4563)]