20990552

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{238529}}^1$

素因数の和:238546

約数の個数: 16

約数和(自身を含む): 42935400

約数和(自身を除く): 21944848

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 238529, 477058, 954116, 1908232, 2623819, 5247638, 10495276, 20990552]

約数ペア:

[(1, 20990552), (2, 10495276), (4, 5247638), (8, 2623819), (11, 1908232), (22, 954116), (44, 477058), (88, 238529)]