19860939

素因数分解:

$3^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{859}}^1$

素因数の和:1239

約数の個数: 24

約数和(自身を含む): 32913920

約数和(自身を除く): 13052981

約数列:

[1, 3, 7, 9, 21, 63, 367, 859, 1101, 2569, 2577, 3303, 6013, 7707, 7731, 18039, 23121, 54117, 315253, 945759, 2206771, 2837277, 6620313, 19860939]

約数ペア:

[(1, 19860939), (3, 6620313), (7, 2837277), (9, 2206771), (21, 945759), (63, 315253), (367, 54117), (859, 23121), (1101, 18039), (2569, 7731), (2577, 7707), (3303, 6013)]