20151989

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7417}}^1$

素因数の和:7460

約数の個数: 16

約数和(自身を含む): 24924480

約数和(自身を除く): 4772491

約数列:

[1, 11, 13, 19, 143, 209, 247, 2717, 7417, 81587, 96421, 140923, 1060631, 1550153, 1831999, 20151989]

約数ペア:

[(1, 20151989), (11, 1831999), (13, 1550153), (19, 1060631), (143, 140923), (209, 96421), (247, 81587), (2717, 7417)]