21000359555

素因数分解:

$5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3015127}}^1$

素因数の和:3015338

約数の個数: 16

約数和(自身を含む): 28945228800

約数和(自身を除く): 7944869245

約数列:

[1, 5, 7, 35, 199, 995, 1393, 6965, 3015127, 15075635, 21105889, 105529445, 600010273, 3000051365, 4200071911, 21000359555]

約数ペア:

[(1, 21000359555), (5, 4200071911), (7, 3000051365), (35, 600010273), (199, 105529445), (995, 21105889), (1393, 15075635), (6965, 3015127)]