21000871391

素因数分解:

${\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1\times {\mathrm{28411}}^1$

素因数の和:28870

約数の個数: 16

約数和(自身を含む): 22093171200

約数和(自身を除く): 1092299809

約数列:

[1, 29, 71, 359, 2059, 10411, 25489, 28411, 739181, 823919, 2017181, 10199549, 58498249, 295786921, 724167979, 21000871391]

約数ペア:

[(1, 21000871391), (29, 724167979), (71, 295786921), (359, 58498249), (2059, 10199549), (10411, 2017181), (25489, 823919), (28411, 739181)]