2878642

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2089}}^1$

素因数の和:2157

約数の個数: 16

約数和(自身を含む): 4740120

約数和(自身を除く): 1861478

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 2089, 4178, 27157, 54314, 110717, 221434, 1439321, 2878642]

約数ペア:

[(1, 2878642), (2, 1439321), (13, 221434), (26, 110717), (53, 54314), (106, 27157), (689, 4178), (1378, 2089)]