20883856

素因数分解:

$2^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{937}}^1$

素因数の和:1151

約数の個数: 40

約数和(自身を含む): 46524800

約数和(自身を除く): 25640944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 199, 398, 796, 937, 1393, 1592, 1874, 2786, 3184, 3748, 5572, 6559, 7496, 11144, 13118, 14992, 22288, 26236, 52472, 104944, 186463, 372926, 745852, 1305241, 1491704, 2610482, 2983408, 5220964, 10441928, 20883856]

約数ペア:

[(1, 20883856), (2, 10441928), (4, 5220964), (7, 2983408), (8, 2610482), (14, 1491704), (16, 1305241), (28, 745852), (56, 372926), (112, 186463), (199, 104944), (398, 52472), (796, 26236), (937, 22288), (1393, 14992), (1592, 13118), (1874, 11144), (2786, 7496), (3184, 6559), (3748, 5572)]