21000369704

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{694273}}^1$

素因数の和:694497

約数の個数: 32

約数和(自身を含む): 41656440000

約数和(自身を除く): 20656070296

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 199, 398, 796, 1592, 3781, 7562, 15124, 30248, 694273, 1388546, 2777092, 5554184, 13191187, 26382374, 52764748, 105529496, 138160327, 276320654, 552641308, 1105282616, 2625046213, 5250092426, 10500184852, 21000369704]

約数ペア:

[(1, 21000369704), (2, 10500184852), (4, 5250092426), (8, 2625046213), (19, 1105282616), (38, 552641308), (76, 276320654), (152, 138160327), (199, 105529496), (398, 52764748), (796, 26382374), (1592, 13191187), (3781, 5554184), (7562, 2777092), (15124, 1388546), (30248, 694273)]