20019987

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{57037}}^1$

素因数の和:57059

約数の個数: 16

約数和(自身を含む): 31941280

約数和(自身を除く): 11921293

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 57037, 171111, 513333, 741481, 1539999, 2224443, 6673329, 20019987]

約数ペア:

[(1, 20019987), (3, 6673329), (9, 2224443), (13, 1539999), (27, 741481), (39, 513333), (117, 171111), (351, 57037)]