18805213

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4271}}^1$

素因数の和:4332

約数の個数: 16

約数和(自身を含む): 23376384

約数和(自身を除く): 4571171

約数列:

[1, 7, 17, 37, 119, 259, 629, 4271, 4403, 29897, 72607, 158027, 508249, 1106189, 2686459, 18805213]

約数ペア:

[(1, 18805213), (7, 2686459), (17, 1106189), (37, 508249), (119, 158027), (259, 72607), (629, 29897), (4271, 4403)]