20111988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{128923}}^1$

素因数の和:128943

約数の個数: 24

約数和(自身を含む): 50538208

約数和(自身を除く): 30426220

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 128923, 257846, 386769, 515692, 773538, 1547076, 1675999, 3351998, 5027997, 6703996, 10055994, 20111988]

約数ペア:

[(1, 20111988), (2, 10055994), (3, 6703996), (4, 5027997), (6, 3351998), (12, 1675999), (13, 1547076), (26, 773538), (39, 515692), (52, 386769), (78, 257846), (156, 128923)]