21251685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15569}}^1$

素因数の和:15597

約数の個数: 32

約数和(自身を含む): 41852160

約数和(自身を除く): 20600475

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15569, 46707, 77845, 108983, 202397, 233535, 326949, 544915, 607191, 1011985, 1416779, 1634745, 3035955, 4250337, 7083895, 21251685]

約数ペア:

[(1, 21251685), (3, 7083895), (5, 4250337), (7, 3035955), (13, 1634745), (15, 1416779), (21, 1011985), (35, 607191), (39, 544915), (65, 326949), (91, 233535), (105, 202397), (195, 108983), (273, 77845), (455, 46707), (1365, 15569)]