19639881

素因数分解:

$3^3\times {\mathrm{97}}^1\times {\mathrm{7499}}^1$

素因数の和:7605

約数の個数: 16

約数和(自身を含む): 29400000

約数和(自身を除く): 9760119

約数列:

[1, 3, 9, 27, 97, 291, 873, 2619, 7499, 22497, 67491, 202473, 727403, 2182209, 6546627, 19639881]

約数ペア:

[(1, 19639881), (3, 6546627), (9, 2182209), (27, 727403), (97, 202473), (291, 67491), (873, 22497), (2619, 7499)]