20997103689

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{16546181}}^1$

素因数の和:16546237

約数の個数: 16

約数和(自身を含む): 31768669440

約数和(自身を除く): 10771565751

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 16546181, 49638543, 148915629, 446746887, 777670507, 2333011521, 6999034563, 20997103689]

約数ペア:

[(1, 20997103689), (3, 6999034563), (9, 2333011521), (27, 777670507), (47, 446746887), (141, 148915629), (423, 49638543), (1269, 16546181)]