20189989

素因数分解:

${\mathrm{19}}^1\times {\mathrm{571}}^1\times {\mathrm{1861}}^1$

素因数の和:2451

約数の個数: 8

約数和(自身を含む): 21301280

約数和(自身を除く): 1111291

約数列:

[1, 19, 571, 1861, 10849, 35359, 1062631, 20189989]

約数ペア:

[(1, 20189989), (19, 1062631), (571, 35359), (1861, 10849)]