19428059

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{281}}^1$

素因数の和:395

約数の個数: 24

約数和(自身を含む): 24303888

約数和(自身を除く): 4875829

約数列:

[1, 7, 17, 49, 83, 119, 281, 581, 833, 1411, 1967, 4067, 4777, 9877, 13769, 23323, 33439, 69139, 163261, 234073, 396491, 1142827, 2775437, 19428059]

約数ペア:

[(1, 19428059), (7, 2775437), (17, 1142827), (49, 396491), (83, 234073), (119, 163261), (281, 69139), (581, 33439), (833, 23323), (1411, 13769), (1967, 9877), (4067, 4777)]