21468656

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{547}}^1$

素因数の和:789

約数の個数: 40

約数和(自身を含む): 45663744

約数和(自身を除く): 24195088

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 223, 446, 547, 892, 1094, 1784, 2188, 2453, 3568, 4376, 4906, 6017, 8752, 9812, 12034, 19624, 24068, 39248, 48136, 96272, 121981, 243962, 487924, 975848, 1341791, 1951696, 2683582, 5367164, 10734328, 21468656]

約数ペア:

[(1, 21468656), (2, 10734328), (4, 5367164), (8, 2683582), (11, 1951696), (16, 1341791), (22, 975848), (44, 487924), (88, 243962), (176, 121981), (223, 96272), (446, 48136), (547, 39248), (892, 24068), (1094, 19624), (1784, 12034), (2188, 9812), (2453, 8752), (3568, 6017), (4376, 4906)]