18857993

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{593}}^1$

素因数の和:677

約数の個数: 24

約数和(自身を含む): 24377760

約数和(自身を除く): 5519767

約数列:

[1, 7, 11, 49, 59, 77, 413, 539, 593, 649, 2891, 4151, 4543, 6523, 29057, 31801, 34987, 45661, 244909, 319627, 384857, 1714363, 2693999, 18857993]

約数ペア:

[(1, 18857993), (7, 2693999), (11, 1714363), (49, 384857), (59, 319627), (77, 244909), (413, 45661), (539, 34987), (593, 31801), (649, 29057), (2891, 6523), (4151, 4543)]