20425911

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 30831360

約数和(自身を除く): 10405449

約数列:

[1, 3, 11, 33, 61, 73, 139, 183, 219, 417, 671, 803, 1529, 2013, 2409, 4453, 4587, 8479, 10147, 13359, 25437, 30441, 48983, 93269, 111617, 146949, 279807, 334851, 618967, 1856901, 6808637, 20425911]

約数ペア:

[(1, 20425911), (3, 6808637), (11, 1856901), (33, 618967), (61, 334851), (73, 279807), (139, 146949), (183, 111617), (219, 93269), (417, 48983), (671, 30441), (803, 25437), (1529, 13359), (2013, 10147), (2409, 8479), (4453, 4587)]