19808984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{190471}}^1$

素因数の和:190490

約数の個数: 16

約数和(自身を含む): 39999120

約数和(自身を除く): 20190136

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 190471, 380942, 761884, 1523768, 2476123, 4952246, 9904492, 19808984]

約数ペア:

[(1, 19808984), (2, 9904492), (4, 4952246), (8, 2476123), (13, 1523768), (26, 761884), (52, 380942), (104, 190471)]