31897151

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{13121}}^1$

素因数の和:13162

約数の個数: 16

約数和(自身を含む): 39680928

約数和(自身を除く): 7783777

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 13121, 144331, 170573, 223057, 1876303, 2453627, 2899741, 31897151]

約数ペア:

[(1, 31897151), (11, 2899741), (13, 2453627), (17, 1876303), (143, 223057), (187, 170573), (221, 144331), (2431, 13121)]