201721805103

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{738907711}}^1$

素因数の和:738907734

約数の個数: 16

約数和(自身を含む): 331030654976

約数和(自身を除く): 129308849873

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 738907711, 2216723133, 5172353977, 9605800243, 15517061931, 28817400729, 67240601701, 201721805103]

約数ペア:

[(1, 201721805103), (3, 67240601701), (7, 28817400729), (13, 15517061931), (21, 9605800243), (39, 5172353977), (91, 2216723133), (273, 738907711)]