28200081

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1949}}^1$

素因数の和:2025

約数の個数: 32

約数和(自身を含む): 47174400

約数和(自身を除く): 18974319

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 1949, 2067, 4823, 5847, 13643, 14469, 25337, 40929, 76011, 103297, 177359, 309891, 532077, 723079, 1342861, 2169237, 4028583, 9400027, 28200081]

約数ペア:

[(1, 28200081), (3, 9400027), (7, 4028583), (13, 2169237), (21, 1342861), (39, 723079), (53, 532077), (91, 309891), (159, 177359), (273, 103297), (371, 76011), (689, 40929), (1113, 25337), (1949, 14469), (2067, 13643), (4823, 5847)]