20861779642

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{86205701}}^1$

素因数の和:86205725

約数の個数: 12

約数和(自身を含む): 34396075098

約数和(自身を除く): 13534295456

約数列:

[1, 2, 11, 22, 121, 242, 86205701, 172411402, 948262711, 1896525422, 10430889821, 20861779642]

約数ペア:

[(1, 20861779642), (2, 10430889821), (11, 1896525422), (22, 948262711), (121, 172411402), (242, 86205701)]