19712705

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{331}}^1$

素因数の和:656

約数の個数: 16

約数和(自身を含む): 24366144

約数和(自身を除く): 4653439

約数列:

[1, 5, 43, 215, 277, 331, 1385, 1655, 11911, 14233, 59555, 71165, 91687, 458435, 3942541, 19712705]

約数ペア:

[(1, 19712705), (5, 3942541), (43, 458435), (215, 91687), (277, 71165), (331, 59555), (1385, 14233), (1655, 11911)]