20781042

素因数分解:

$2^1\times 3^1\times {\mathrm{83}}^1\times {\mathrm{41729}}^1$

素因数の和:41817

約数の個数: 16

約数和(自身を含む): 42063840

約数和(自身を除く): 21282798

約数列:

[1, 2, 3, 6, 83, 166, 249, 498, 41729, 83458, 125187, 250374, 3463507, 6927014, 10390521, 20781042]

約数ペア:

[(1, 20781042), (2, 10390521), (3, 6927014), (6, 3463507), (83, 250374), (166, 125187), (249, 83458), (498, 41729)]