20179621

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1291}}^1$

素因数の和:1345

約数の個数: 24

約数和(自身を含む): 26511840

約数和(自身を除く): 6332219

約数列:

[1, 7, 11, 29, 49, 77, 203, 319, 539, 1291, 1421, 2233, 9037, 14201, 15631, 37439, 63259, 99407, 262073, 411829, 695849, 1834511, 2882803, 20179621]

約数ペア:

[(1, 20179621), (7, 2882803), (11, 1834511), (29, 695849), (49, 411829), (77, 262073), (203, 99407), (319, 63259), (539, 37439), (1291, 15631), (1421, 14201), (2233, 9037)]