21061419

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2971}}^1$

素因数の和:3130

約数の個数: 16

約数和(自身を含む): 29957760

約数和(自身を除く): 8896341

約数列:

[1, 3, 17, 51, 139, 417, 2363, 2971, 7089, 8913, 50507, 151521, 412969, 1238907, 7020473, 21061419]

約数ペア:

[(1, 21061419), (3, 7020473), (17, 1238907), (51, 412969), (139, 151521), (417, 50507), (2363, 8913), (2971, 7089)]