19402425

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 40441856

約数和(自身を除く): 21039431

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 97, 105, 127, 175, 225, 291, 315, 381, 485, 525, 635, 679, 873, 889, 1143, 1455, 1575, 1905, 2037, 2425, 2667, 3175, 3395, 4365, 4445, 5715, 6111, 7275, 8001, 9525, 10185, 12319, 13335, 16975, 21825, 22225, 28575, 30555, 36957, 40005, 50925, 61595, 66675, 86233, 110871, 152775, 184785, 200025, 258699, 307975, 431165, 554355, 776097, 923925, 1293495, 2155825, 2771775, 3880485, 6467475, 19402425]

約数ペア:

[(1, 19402425), (3, 6467475), (5, 3880485), (7, 2771775), (9, 2155825), (15, 1293495), (21, 923925), (25, 776097), (35, 554355), (45, 431165), (63, 307975), (75, 258699), (97, 200025), (105, 184785), (127, 152775), (175, 110871), (225, 86233), (291, 66675), (315, 61595), (381, 50925), (485, 40005), (525, 36957), (635, 30555), (679, 28575), (873, 22225), (889, 21825), (1143, 16975), (1455, 13335), (1575, 12319), (1905, 10185), (2037, 9525), (2425, 8001), (2667, 7275), (3175, 6111), (3395, 5715), (4365, 4445)]