20792948

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^2\times {\mathrm{127}}^1$

素因数の和:264

約数の個数: 36

約数和(自身を含む): 40674816

約数和(自身を除く): 19881868

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 127, 244, 254, 508, 671, 1342, 1397, 2684, 2794, 3721, 5588, 7442, 7747, 14884, 15494, 30988, 40931, 81862, 85217, 163724, 170434, 340868, 472567, 945134, 1890268, 5198237, 10396474, 20792948]

約数ペア:

[(1, 20792948), (2, 10396474), (4, 5198237), (11, 1890268), (22, 945134), (44, 472567), (61, 340868), (122, 170434), (127, 163724), (244, 85217), (254, 81862), (508, 40931), (671, 30988), (1342, 15494), (1397, 14884), (2684, 7747), (2794, 7442), (3721, 5588)]