81568665

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{21839}}^1$

素因数の和:21933

約数の個数: 24

約数和(自身を含む): 143095680

約数和(自身を除く): 61527015

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 21839, 65517, 109195, 196551, 327585, 982755, 1812637, 5437911, 9063185, 16313733, 27189555, 81568665]

約数ペア:

[(1, 81568665), (3, 27189555), (5, 16313733), (9, 9063185), (15, 5437911), (45, 1812637), (83, 982755), (249, 327585), (415, 196551), (747, 109195), (1245, 65517), (3735, 21839)]