19971159

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{7643}}^1$

素因数の和:7726

約数の個数: 16

約数和(自身を含む): 29108352

約数和(自身を除く): 9137193

約数列:

[1, 3, 13, 39, 67, 201, 871, 2613, 7643, 22929, 99359, 298077, 512081, 1536243, 6657053, 19971159]

約数ペア:

[(1, 19971159), (3, 6657053), (13, 1536243), (39, 512081), (67, 298077), (201, 99359), (871, 22929), (2613, 7643)]