20087573409

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{71998471}}^1$

素因数の和:71998508

約数の個数: 12

約数和(自身を含む): 29951364352

約数和(自身を除く): 9863790943

約数列:

[1, 3, 9, 31, 93, 279, 71998471, 215995413, 647986239, 2231952601, 6695857803, 20087573409]

約数ペア:

[(1, 20087573409), (3, 6695857803), (9, 2231952601), (31, 647986239), (93, 215995413), (279, 71998471)]