21123148

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{967}}^1$

素因数の和:1141

約数の個数: 24

約数和(自身を含む): 38162432

約数和(自身を除く): 17039284

約数列:

[1, 2, 4, 43, 86, 127, 172, 254, 508, 967, 1934, 3868, 5461, 10922, 21844, 41581, 83162, 122809, 166324, 245618, 491236, 5280787, 10561574, 21123148]

約数ペア:

[(1, 21123148), (2, 10561574), (4, 5280787), (43, 491236), (86, 245618), (127, 166324), (172, 122809), (254, 83162), (508, 41581), (967, 21844), (1934, 10922), (3868, 5461)]