2021305

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 2882376

約数和(自身を除く): 861071

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 257, 605, 715, 1285, 1573, 2827, 3341, 7865, 14135, 16705, 31097, 36751, 155485, 183755, 404261, 2021305]

約数ペア:

[(1, 2021305), (5, 404261), (11, 183755), (13, 155485), (55, 36751), (65, 31097), (121, 16705), (143, 14135), (257, 7865), (605, 3341), (715, 2827), (1285, 1573)]