21064161

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{967}}^1$

素因数の和:1160

約数の個数: 16

約数和(自身を含む): 28854144

約数和(自身を除く): 7789983

約数列:

[1, 3, 53, 137, 159, 411, 967, 2901, 7261, 21783, 51251, 132479, 153753, 397437, 7021387, 21064161]

約数ペア:

[(1, 21064161), (3, 7021387), (53, 397437), (137, 153753), (159, 132479), (411, 51251), (967, 21783), (2901, 7261)]