20155121

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{11117}}^1$

素因数の和:11168

約数の個数: 12

約数和(自身を含む): 24081588

約数和(自身を除く): 3926467

約数列:

[1, 7, 37, 49, 259, 1813, 11117, 77819, 411329, 544733, 2879303, 20155121]

約数ペア:

[(1, 20155121), (7, 2879303), (37, 544733), (49, 411329), (259, 77819), (1813, 11117)]