18727291

素因数分解:

${\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 21833280

約数和(自身を除く): 3105989

約数列:

[1, 11, 37, 47, 89, 121, 407, 517, 979, 1739, 3293, 4183, 4477, 5687, 10769, 19129, 36223, 46013, 154771, 210419, 398453, 506143, 1702481, 18727291]

約数ペア:

[(1, 18727291), (11, 1702481), (37, 506143), (47, 398453), (89, 210419), (121, 154771), (407, 46013), (517, 36223), (979, 19129), (1739, 10769), (3293, 5687), (4183, 4477)]