19989015

素因数分解:

$3^1\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1901}}^1$

素因数の和:2610

約数の個数: 16

約数和(自身を含む): 32044896

約数和(自身を除く): 12055881

約数列:

[1, 3, 5, 15, 701, 1901, 2103, 3505, 5703, 9505, 10515, 28515, 1332601, 3997803, 6663005, 19989015]

約数ペア:

[(1, 19989015), (3, 6663005), (5, 3997803), (15, 1332601), (701, 28515), (1901, 10515), (2103, 9505), (3505, 5703)]