21236121

素因数分解:

$3^3\times {\mathrm{757}}^1\times {\mathrm{1039}}^1$

素因数の和:1805

約数の個数: 16

約数和(自身を含む): 31532800

約数和(自身を除く): 10296679

約数列:

[1, 3, 9, 27, 757, 1039, 2271, 3117, 6813, 9351, 20439, 28053, 786523, 2359569, 7078707, 21236121]

約数ペア:

[(1, 21236121), (3, 7078707), (9, 2359569), (27, 786523), (757, 28053), (1039, 20439), (2271, 9351), (3117, 6813)]