19752271

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3613}}^1$

素因数の和:3702

約数の個数: 16

約数和(自身を含む): 24979968

約数和(自身を除く): 5227697

約数列:

[1, 7, 11, 71, 77, 497, 781, 3613, 5467, 25291, 39743, 256523, 278201, 1795661, 2821753, 19752271]

約数ペア:

[(1, 19752271), (7, 2821753), (11, 1795661), (71, 278201), (77, 256523), (497, 39743), (781, 25291), (3613, 5467)]