28642757

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 34409760

約数和(自身を除く): 5767003

約数列:

[1, 11, 13, 121, 131, 139, 143, 1441, 1529, 1573, 1703, 1807, 15851, 16819, 18209, 18733, 19877, 200299, 206063, 218647, 236717, 2203289, 2603887, 28642757]

約数ペア:

[(1, 28642757), (11, 2603887), (13, 2203289), (121, 236717), (131, 218647), (139, 206063), (143, 200299), (1441, 19877), (1529, 18733), (1573, 18209), (1703, 16819), (1807, 15851)]