987788139

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{356731}}^1$

素因数の和:356818

約数の個数: 16

約数和(自身を含む): 1438343424

約数和(自身を除く): 450555285

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 356731, 1070193, 4637503, 13912509, 25327901, 75983703, 329262713, 987788139]

約数ペア:

[(1, 987788139), (3, 329262713), (13, 75983703), (39, 25327901), (71, 13912509), (213, 4637503), (923, 1070193), (2769, 356731)]