21032995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{2551}}^1$

素因数の和:2670

約数の個数: 16

約数和(自身を含む): 27010368

約数和(自身を除く): 5977373

約数列:

[1, 5, 17, 85, 97, 485, 1649, 2551, 8245, 12755, 43367, 216835, 247447, 1237235, 4206599, 21032995]

約数ペア:

[(1, 21032995), (5, 4206599), (17, 1237235), (85, 247447), (97, 216835), (485, 43367), (1649, 12755), (2551, 8245)]