19645274

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12577}}^1$

素因数の和:12661

約数の個数: 16

約数和(自身を含む): 32602176

約数和(自身を除く): 12956902

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12577, 25154, 138347, 276694, 892967, 1785934, 9822637, 19645274]

約数ペア:

[(1, 19645274), (2, 9822637), (11, 1785934), (22, 892967), (71, 276694), (142, 138347), (781, 25154), (1562, 12577)]