87661287

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47981}}^1$

素因数の和:48023

約数の個数: 24

約数和(自身を含む): 149703840

約数和(自身を除く): 62042553

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 47981, 143943, 335867, 431829, 1007601, 1391449, 3022803, 4174347, 9740143, 12523041, 29220429, 87661287]

約数ペア:

[(1, 87661287), (3, 29220429), (7, 12523041), (9, 9740143), (21, 4174347), (29, 3022803), (63, 1391449), (87, 1007601), (203, 431829), (261, 335867), (609, 143943), (1827, 47981)]