21106736

素因数分解:

$2^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{947}}^1$

素因数の和:1161

約数の個数: 40

約数和(自身を含む): 47020800

約数和(自身を除く): 25914064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 199, 398, 796, 947, 1393, 1592, 1894, 2786, 3184, 3788, 5572, 6629, 7576, 11144, 13258, 15152, 22288, 26516, 53032, 106064, 188453, 376906, 753812, 1319171, 1507624, 2638342, 3015248, 5276684, 10553368, 21106736]

約数ペア:

[(1, 21106736), (2, 10553368), (4, 5276684), (7, 3015248), (8, 2638342), (14, 1507624), (16, 1319171), (28, 753812), (56, 376906), (112, 188453), (199, 106064), (398, 53032), (796, 26516), (947, 22288), (1393, 15152), (1592, 13258), (1894, 11144), (2786, 7576), (3184, 6629), (3788, 5572)]