21686182

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{81527}}^1$

素因数の和:81555

約数の個数: 16

約数和(自身を含む): 39133440

約数和(自身を除く): 17447258

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 81527, 163054, 570689, 1141378, 1549013, 3098026, 10843091, 21686182]

約数ペア:

[(1, 21686182), (2, 10843091), (7, 3098026), (14, 1549013), (19, 1141378), (38, 570689), (133, 163054), (266, 81527)]