21191192

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{937}}^1$

素因数の和:1211

約数の個数: 32

約数和(自身を含む): 43560720

約数和(自身を除く): 22369528

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 257, 514, 937, 1028, 1874, 2056, 2827, 3748, 5654, 7496, 10307, 11308, 20614, 22616, 41228, 82456, 240809, 481618, 963236, 1926472, 2648899, 5297798, 10595596, 21191192]

約数ペア:

[(1, 21191192), (2, 10595596), (4, 5297798), (8, 2648899), (11, 1926472), (22, 963236), (44, 481618), (88, 240809), (257, 82456), (514, 41228), (937, 22616), (1028, 20614), (1874, 11308), (2056, 10307), (2827, 7496), (3748, 5654)]