28487943

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{31973}}^1$

素因数の和:31996

約数の個数: 20

約数和(自身を含む): 46426248

約数和(自身を除く): 17938305

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 31973, 95919, 287757, 351703, 863271, 1055109, 2589813, 3165327, 9495981, 28487943]

約数ペア:

[(1, 28487943), (3, 9495981), (9, 3165327), (11, 2589813), (27, 1055109), (33, 863271), (81, 351703), (99, 287757), (297, 95919), (891, 31973)]