17980844

素因数分解:

$2^2\times 7^2\times {\mathrm{199}}^1\times {\mathrm{461}}^1$

素因数の和:678

約数の個数: 36

約数和(自身を含む): 36867600

約数和(自身を除く): 18886756

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 199, 398, 461, 796, 922, 1393, 1844, 2786, 3227, 5572, 6454, 9751, 12908, 19502, 22589, 39004, 45178, 90356, 91739, 183478, 366956, 642173, 1284346, 2568692, 4495211, 8990422, 17980844]

約数ペア:

[(1, 17980844), (2, 8990422), (4, 4495211), (7, 2568692), (14, 1284346), (28, 642173), (49, 366956), (98, 183478), (196, 91739), (199, 90356), (398, 45178), (461, 39004), (796, 22589), (922, 19502), (1393, 12908), (1844, 9751), (2786, 6454), (3227, 5572)]