20784153

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{1303}}^1$

素因数の和:1728

約数の個数: 16

約数和(自身を含む): 29939840

約数和(自身を除く): 9155687

約数列:

[1, 3, 13, 39, 409, 1227, 1303, 3909, 5317, 15951, 16939, 50817, 532927, 1598781, 6928051, 20784153]

約数ペア:

[(1, 20784153), (3, 6928051), (13, 1598781), (39, 532927), (409, 50817), (1227, 16939), (1303, 15951), (3909, 5317)]