21032485

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{709}}^1$

素因数の和:1080

約数の個数: 16

約数和(自身を含む): 26838000

約数和(自身を除く): 5805515

約数列:

[1, 5, 17, 85, 349, 709, 1745, 3545, 5933, 12053, 29665, 60265, 247441, 1237205, 4206497, 21032485]

約数ペア:

[(1, 21032485), (5, 4206497), (17, 1237205), (85, 247441), (349, 60265), (709, 29665), (1745, 12053), (3545, 5933)]