20945644

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{2591}}^1$

素因数の和:2685

約数の個数: 24

約数和(自身を含む): 38320128

約数和(自身を除く): 17374484

約数列:

[1, 2, 4, 43, 47, 86, 94, 172, 188, 2021, 2591, 4042, 5182, 8084, 10364, 111413, 121777, 222826, 243554, 445652, 487108, 5236411, 10472822, 20945644]

約数ペア:

[(1, 20945644), (2, 10472822), (4, 5236411), (43, 487108), (47, 445652), (86, 243554), (94, 222826), (172, 121777), (188, 111413), (2021, 10364), (2591, 8084), (4042, 5182)]