87505271

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{1291}}^1$

素因数の和:1742

約数の個数: 16

約数和(自身を含む): 104683008

約数和(自身を除く): 17177737

約数列:

[1, 7, 23, 161, 421, 1291, 2947, 9037, 9683, 29693, 67781, 207851, 543511, 3804577, 12500753, 87505271]

約数ペア:

[(1, 87505271), (7, 12500753), (23, 3804577), (161, 543511), (421, 207851), (1291, 67781), (2947, 29693), (9037, 9683)]