78231987

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{50833}}^1$

素因数の和:50864

約数の個数: 20

約数和(自身を含む): 123018280

約数和(自身を除く): 44786293

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 50833, 152499, 457497, 965827, 1372491, 2897481, 4117473, 8692443, 26077329, 78231987]

約数ペア:

[(1, 78231987), (3, 26077329), (9, 8692443), (19, 4117473), (27, 2897481), (57, 1372491), (81, 965827), (171, 457497), (513, 152499), (1539, 50833)]