20998378

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{7703}}^1$

素因数の和:7781

約数の個数: 16

約数和(自身を含む): 33281280

約数和(自身を除く): 12282902

約数列:

[1, 2, 29, 47, 58, 94, 1363, 2726, 7703, 15406, 223387, 362041, 446774, 724082, 10499189, 20998378]

約数ペア:

[(1, 20998378), (2, 10499189), (29, 724082), (47, 446774), (58, 362041), (94, 223387), (1363, 15406), (2726, 7703)]