28377621

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{18439}}^1$

素因数の和:18470

約数の個数: 20

約数和(自身を含む): 44624800

約数和(自身を除く): 16247179

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 18439, 55317, 165951, 350341, 497853, 1051023, 1493559, 3153069, 9459207, 28377621]

約数ペア:

[(1, 28377621), (3, 9459207), (9, 3153069), (19, 1493559), (27, 1051023), (57, 497853), (81, 350341), (171, 165951), (513, 55317), (1539, 18439)]