21604455

素因数分解:

$3^3\times 5^1\times {\mathrm{160033}}^1$

素因数の和:160047

約数の個数: 16

約数和(自身を含む): 38408160

約数和(自身を除く): 16803705

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 160033, 480099, 800165, 1440297, 2400495, 4320891, 7201485, 21604455]

約数ペア:

[(1, 21604455), (3, 7201485), (5, 4320891), (9, 2400495), (15, 1440297), (27, 800165), (45, 480099), (135, 160033)]