200991

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1$

素因数の和:590

約数の個数: 16

約数和(自身を含む): 324864

約数和(自身を除く): 123873

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 563, 1689, 3941, 9571, 11823, 28713, 66997, 200991]

約数ペア:

[(1, 200991), (3, 66997), (7, 28713), (17, 11823), (21, 9571), (51, 3941), (119, 1689), (357, 563)]