28821195

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2593}}^1$

素因数の和:2636

約数の個数: 48

約数和(自身を含む): 56652960

約数和(自身を除く): 27831765

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 741, 855, 1235, 2223, 2593, 3705, 7779, 11115, 12965, 23337, 33709, 38895, 49267, 101127, 116685, 147801, 168545, 246335, 303381, 443403, 505635, 640471, 739005, 1516905, 1921413, 2217015, 3202355, 5764239, 9607065, 28821195]

約数ペア:

[(1, 28821195), (3, 9607065), (5, 5764239), (9, 3202355), (13, 2217015), (15, 1921413), (19, 1516905), (39, 739005), (45, 640471), (57, 505635), (65, 443403), (95, 303381), (117, 246335), (171, 168545), (195, 147801), (247, 116685), (285, 101127), (585, 49267), (741, 38895), (855, 33709), (1235, 23337), (2223, 12965), (2593, 11115), (3705, 7779)]