21231604

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{129461}}^1$

素因数の和:129506

約数の個数: 12

約数和(自身を含む): 38061828

約数和(自身を除く): 16830224

約数列:

[1, 2, 4, 41, 82, 164, 129461, 258922, 517844, 5307901, 10615802, 21231604]

約数ペア:

[(1, 21231604), (2, 10615802), (4, 5307901), (41, 517844), (82, 258922), (164, 129461)]