18697180

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{8737}}^1$

素因数の和:8853

約数の個数: 24

約数和(自身を含む): 39635568

約数和(自身を除く): 20938388

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 8737, 17474, 34948, 43685, 87370, 174740, 934859, 1869718, 3739436, 4674295, 9348590, 18697180]

約数ペア:

[(1, 18697180), (2, 9348590), (4, 4674295), (5, 3739436), (10, 1869718), (20, 934859), (107, 174740), (214, 87370), (428, 43685), (535, 34948), (1070, 17474), (2140, 8737)]