21095228

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68491}}^1$

素因数の和:68513

約数の個数: 24

約数和(自身を含む): 46026624

約数和(自身を除く): 24931396

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68491, 136982, 273964, 479437, 753401, 958874, 1506802, 1917748, 3013604, 5273807, 10547614, 21095228]

約数ペア:

[(1, 21095228), (2, 10547614), (4, 5273807), (7, 3013604), (11, 1917748), (14, 1506802), (22, 958874), (28, 753401), (44, 479437), (77, 273964), (154, 136982), (308, 68491)]