19917918

素因数分解:

$2^1\times 3^2\times {\mathrm{127}}^1\times {\mathrm{8713}}^1$

素因数の和:8848

約数の個数: 24

約数和(自身を含む): 43500288

約数和(自身を除く): 23582370

約数列:

[1, 2, 3, 6, 9, 18, 127, 254, 381, 762, 1143, 2286, 8713, 17426, 26139, 52278, 78417, 156834, 1106551, 2213102, 3319653, 6639306, 9958959, 19917918]

約数ペア:

[(1, 19917918), (2, 9958959), (3, 6639306), (6, 3319653), (9, 2213102), (18, 1106551), (127, 156834), (254, 78417), (381, 52278), (762, 26139), (1143, 17426), (2286, 8713)]