21282615

素因数分解:

$3^3\times 5^1\times {\mathrm{157649}}^1$

素因数の和:157663

約数の個数: 16

約数和(自身を含む): 37836000

約数和(自身を除く): 16553385

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157649, 472947, 788245, 1418841, 2364735, 4256523, 7094205, 21282615]

約数ペア:

[(1, 21282615), (3, 7094205), (5, 4256523), (9, 2364735), (15, 1418841), (27, 788245), (45, 472947), (135, 157649)]