18925785

素因数分解:

$3^3\times 5^1\times {\mathrm{140191}}^1$

素因数の和:140205

約数の個数: 16

約数和(自身を含む): 33646080

約数和(自身を除く): 14720295

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 140191, 420573, 700955, 1261719, 2102865, 3785157, 6308595, 18925785]

約数ペア:

[(1, 18925785), (3, 6308595), (5, 3785157), (9, 2102865), (15, 1261719), (27, 700955), (45, 420573), (135, 140191)]