20984456

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63977}}^1$

素因数の和:64024

約数の個数: 16

約数和(自身を含む): 40306140

約数和(自身を除く): 19321684

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63977, 127954, 255908, 511816, 2623057, 5246114, 10492228, 20984456]

約数ペア:

[(1, 20984456), (2, 10492228), (4, 5246114), (8, 2623057), (41, 511816), (82, 255908), (164, 127954), (328, 63977)]