81450243

素因数分解:

$3^2\times 7^1\times {\mathrm{691}}^1\times {\mathrm{1871}}^1$

素因数の和:2575

約数の個数: 24

約数和(自身を含む): 134724096

約数和(自身を除く): 53273853

約数列:

[1, 3, 7, 9, 21, 63, 691, 1871, 2073, 4837, 5613, 6219, 13097, 14511, 16839, 39291, 43533, 117873, 1292861, 3878583, 9050027, 11635749, 27150081, 81450243]

約数ペア:

[(1, 81450243), (3, 27150081), (7, 11635749), (9, 9050027), (21, 3878583), (63, 1292861), (691, 117873), (1871, 43533), (2073, 39291), (4837, 16839), (5613, 14511), (6219, 13097)]