20218804739

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{4003}}^1\times {\mathrm{17599}}^1$

素因数の和:21650

約数の個数: 16

約数和(自身を含む): 23678054400

約数和(自身を除く): 3459249661

約数列:

[1, 7, 41, 287, 4003, 17599, 28021, 123193, 164123, 721559, 1148861, 5050913, 70448797, 493141579, 2888400677, 20218804739]

約数ペア:

[(1, 20218804739), (7, 2888400677), (41, 493141579), (287, 70448797), (4003, 5050913), (17599, 1148861), (28021, 721559), (123193, 164123)]