21604185

素因数分解:

$3^3\times 5^1\times {\mathrm{160031}}^1$

素因数の和:160045

約数の個数: 16

約数和(自身を含む): 38407680

約数和(自身を除く): 16803495

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 160031, 480093, 800155, 1440279, 2400465, 4320837, 7201395, 21604185]

約数ペア:

[(1, 21604185), (3, 7201395), (5, 4320837), (9, 2400465), (15, 1440279), (27, 800155), (45, 480093), (135, 160031)]