20146955

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{563}}^1$

素因数の和:1006

約数の個数: 16

約数和(自身を含む): 25704864

約数和(自身を除く): 5557909

約数列:

[1, 5, 17, 85, 421, 563, 2105, 2815, 7157, 9571, 35785, 47855, 237023, 1185115, 4029391, 20146955]

約数ペア:

[(1, 20146955), (5, 4029391), (17, 1185115), (85, 237023), (421, 47855), (563, 35785), (2105, 9571), (2815, 7157)]