28991105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{3119}}^1$

素因数の和:3161

約数の個数: 24

約数和(自身を含む): 41109120

約数和(自身を除く): 12118015

約数列:

[1, 5, 11, 13, 55, 65, 143, 169, 715, 845, 1859, 3119, 9295, 15595, 34309, 40547, 171545, 202735, 446017, 527111, 2230085, 2635555, 5798221, 28991105]

約数ペア:

[(1, 28991105), (5, 5798221), (11, 2635555), (13, 2230085), (55, 527111), (65, 446017), (143, 202735), (169, 171545), (715, 40547), (845, 34309), (1859, 15595), (3119, 9295)]