201721195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163337}}^1$

素因数の和:163374

約数の個数: 16

約数和(自身を含む): 274407840

約数和(自身を除く): 72686645

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 163337, 816685, 2123381, 3103403, 10616905, 15517015, 40344239, 201721195]

約数ペア:

[(1, 201721195), (5, 40344239), (13, 15517015), (19, 10616905), (65, 3103403), (95, 2123381), (247, 816685), (1235, 163337)]