81720331

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{971}}^1\times {\mathrm{1093}}^1$

素因数の和:2082

約数の個数: 16

約数和(自身を含む): 102083328

約数和(自身を除く): 20362997

約数列:

[1, 7, 11, 77, 971, 1093, 6797, 7651, 10681, 12023, 74767, 84161, 1061303, 7429121, 11674333, 81720331]

約数ペア:

[(1, 81720331), (7, 11674333), (11, 7429121), (77, 1061303), (971, 84161), (1093, 74767), (6797, 12023), (7651, 10681)]