20502548

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3557}}^1$

素因数の和:3703

約数の個数: 24

約数和(自身を含む): 39451104

約数和(自身を除く): 18948556

約数列:

[1, 2, 4, 11, 22, 44, 131, 262, 524, 1441, 2882, 3557, 5764, 7114, 14228, 39127, 78254, 156508, 465967, 931934, 1863868, 5125637, 10251274, 20502548]

約数ペア:

[(1, 20502548), (2, 10251274), (4, 5125637), (11, 1863868), (22, 931934), (44, 465967), (131, 156508), (262, 78254), (524, 39127), (1441, 14228), (2882, 7114), (3557, 5764)]