19688949

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5297}}^1$

素因数の和:5369

約数の個数: 24

約数和(自身を含む): 33059520

約数和(自身を除く): 13370571

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5297, 15891, 37079, 47673, 111237, 312523, 333711, 937569, 2187661, 2812707, 6562983, 19688949]

約数ペア:

[(1, 19688949), (3, 6562983), (7, 2812707), (9, 2187661), (21, 937569), (59, 333711), (63, 312523), (177, 111237), (413, 47673), (531, 37079), (1239, 15891), (3717, 5297)]