20518866

素因数分解:

$2^1\times 3^3\times {\mathrm{379979}}^1$

素因数の和:379990

約数の個数: 16

約数和(自身を含む): 45597600

約数和(自身を除く): 25078734

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 379979, 759958, 1139937, 2279874, 3419811, 6839622, 10259433, 20518866]

約数ペア:

[(1, 20518866), (2, 10259433), (3, 6839622), (6, 3419811), (9, 2279874), (18, 1139937), (27, 759958), (54, 379979)]