18889995

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{23761}}^1$

素因数の和:23822

約数の個数: 16

約数和(自身を含む): 30795552

約数和(自身を除く): 11905557

約数列:

[1, 3, 5, 15, 53, 159, 265, 795, 23761, 71283, 118805, 356415, 1259333, 3777999, 6296665, 18889995]

約数ペア:

[(1, 18889995), (3, 6296665), (5, 3777999), (15, 1259333), (53, 356415), (159, 118805), (265, 71283), (795, 23761)]