1991774319

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{328513}}^1$

素因数の和:328606

約数の個数: 16

約数和(自身を含む): 2775286272

約数和(自身を除く): 783511953

約数列:

[1, 3, 43, 47, 129, 141, 2021, 6063, 328513, 985539, 14126059, 15440111, 42378177, 46320333, 663924773, 1991774319]

約数ペア:

[(1, 1991774319), (3, 663924773), (43, 46320333), (47, 42378177), (129, 15440111), (141, 14126059), (2021, 985539), (6063, 328513)]