19983649

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1549}}^1$

素因数の和:1672

約数の個数: 16

約数和(自身を含む): 24304000

約数和(自身を除く): 4320351

約数列:

[1, 7, 19, 97, 133, 679, 1549, 1843, 10843, 12901, 29431, 150253, 206017, 1051771, 2854807, 19983649]

約数ペア:

[(1, 19983649), (7, 2854807), (19, 1051771), (97, 206017), (133, 150253), (679, 29431), (1549, 12901), (1843, 10843)]