20318739

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23599}}^1$

素因数の和:23650

約数の個数: 16

約数和(自身を含む): 31718400

約数和(自身を除く): 11399661

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 23599, 70797, 165193, 495579, 967559, 2902677, 6772913, 20318739]

約数ペア:

[(1, 20318739), (3, 6772913), (7, 2902677), (21, 967559), (41, 495579), (123, 165193), (287, 70797), (861, 23599)]