20451836

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{1061}}^1$

素因数の和:1205

約数の個数: 24

約数和(自身を含む): 36872640

約数和(自身を除く): 16420804

約数列:

[1, 2, 4, 61, 79, 122, 158, 244, 316, 1061, 2122, 4244, 4819, 9638, 19276, 64721, 83819, 129442, 167638, 258884, 335276, 5112959, 10225918, 20451836]

約数ペア:

[(1, 20451836), (2, 10225918), (4, 5112959), (61, 335276), (79, 258884), (122, 167638), (158, 129442), (244, 83819), (316, 64721), (1061, 19276), (2122, 9638), (4244, 4819)]