21106724

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{8389}}^1$

素因数の和:8447

約数の個数: 24

約数和(自身を含む): 40171320

約数和(自身を除く): 19064596

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 629, 1258, 2516, 8389, 16778, 33556, 142613, 285226, 310393, 570452, 620786, 1241572, 5276681, 10553362, 21106724]

約数ペア:

[(1, 21106724), (2, 10553362), (4, 5276681), (17, 1241572), (34, 620786), (37, 570452), (68, 310393), (74, 285226), (148, 142613), (629, 33556), (1258, 16778), (2516, 8389)]