21167855079

素因数分解:

$3^1\times 7^1\times {\mathrm{709}}^1\times {\mathrm{1421711}}^1$

素因数の和:1422430

約数の個数: 16

約数和(自身を含む): 32301296640

約数和(自身を除く): 11133441561

約数列:

[1, 3, 7, 21, 709, 2127, 4963, 14889, 1421711, 4265133, 9951977, 29855931, 1007993099, 3023979297, 7055951693, 21167855079]

約数ペア:

[(1, 21167855079), (3, 7055951693), (7, 3023979297), (21, 1007993099), (709, 29855931), (2127, 9951977), (4963, 4265133), (14889, 1421711)]