20401986

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{309121}}^1$

素因数の和:309137

約数の個数: 16

約数和(自身を含む): 44513568

約数和(自身を除く): 24111582

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 309121, 618242, 927363, 1854726, 3400331, 6800662, 10200993, 20401986]

約数ペア:

[(1, 20401986), (2, 10200993), (3, 6800662), (6, 3400331), (11, 1854726), (22, 927363), (33, 618242), (66, 309121)]