81578421

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{34729}}^1$

素因数の和:34770

約数の個数: 20

約数和(自身を含む): 126069900

約数和(自身を除く): 44491479

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 34729, 104187, 312561, 937683, 1007141, 2813049, 3021423, 9064269, 27192807, 81578421]

約数ペア:

[(1, 81578421), (3, 27192807), (9, 9064269), (27, 3021423), (29, 2813049), (81, 1007141), (87, 937683), (261, 312561), (783, 104187), (2349, 34729)]