20820708

素因数分解:

$2^2\times 3^2\times {\mathrm{578353}}^1$

素因数の和:578363

約数の個数: 18

約数和(自身を含む): 52630214

約数和(自身を除く): 31809506

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 578353, 1156706, 1735059, 2313412, 3470118, 5205177, 6940236, 10410354, 20820708]

約数ペア:

[(1, 20820708), (2, 10410354), (3, 6940236), (4, 5205177), (6, 3470118), (9, 2313412), (12, 1735059), (18, 1156706), (36, 578353)]