20990860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95413}}^1$

素因数の和:95433

約数の個数: 24

約数和(自身を含む): 48088656

約数和(自身を除く): 27097796

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95413, 190826, 381652, 477065, 954130, 1049543, 1908260, 2099086, 4198172, 5247715, 10495430, 20990860]

約数ペア:

[(1, 20990860), (2, 10495430), (4, 5247715), (5, 4198172), (10, 2099086), (11, 1908260), (20, 1049543), (22, 954130), (44, 477065), (55, 381652), (110, 190826), (220, 95413)]