20668991

素因数分解:

$7^1\times {\mathrm{17}}^3\times {\mathrm{601}}^1$

素因数の和:659

約数の個数: 16

約数和(自身を含む): 25139520

約数和(自身を除く): 4470529

約数列:

[1, 7, 17, 119, 289, 601, 2023, 4207, 4913, 10217, 34391, 71519, 173689, 1215823, 2952713, 20668991]

約数ペア:

[(1, 20668991), (7, 2952713), (17, 1215823), (119, 173689), (289, 71519), (601, 34391), (2023, 10217), (4207, 4913)]