20654842

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{1153}}^1$

素因数の和:1234

約数の個数: 24

約数和(自身を含む): 34211484

約数和(自身を除く): 13556642

約数列:

[1, 2, 13, 26, 53, 106, 169, 338, 689, 1153, 1378, 2306, 8957, 14989, 17914, 29978, 61109, 122218, 194857, 389714, 794417, 1588834, 10327421, 20654842]

約数ペア:

[(1, 20654842), (2, 10327421), (13, 1588834), (26, 794417), (53, 389714), (106, 194857), (169, 122218), (338, 61109), (689, 29978), (1153, 17914), (1378, 14989), (2306, 8957)]