20456854

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{2099}}^1$

素因数の和:2555

約数の個数: 16

約数和(自身を含む): 33566400

約数和(自身を除く): 13109546

約数列:

[1, 2, 11, 22, 443, 886, 2099, 4198, 4873, 9746, 23089, 46178, 929857, 1859714, 10228427, 20456854]

約数ペア:

[(1, 20456854), (2, 10228427), (11, 1859714), (22, 929857), (443, 46178), (886, 23089), (2099, 9746), (4198, 4873)]