20657072

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{4909}}^1$

素因数の和:5180

約数の個数: 20

約数和(自身を含む): 40183440

約数和(自身を除く): 19526368

約数列:

[1, 2, 4, 8, 16, 263, 526, 1052, 2104, 4208, 4909, 9818, 19636, 39272, 78544, 1291067, 2582134, 5164268, 10328536, 20657072]

約数ペア:

[(1, 20657072), (2, 10328536), (4, 5164268), (8, 2582134), (16, 1291067), (263, 78544), (526, 39272), (1052, 19636), (2104, 9818), (4208, 4909)]