31129318

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{17911}}^1$

素因数の和:18003

約数の個数: 16

約数和(自身を含む): 51586560

約数和(自身を除く): 20457242

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 17911, 35822, 197021, 394042, 1414969, 2829938, 15564659, 31129318]

約数ペア:

[(1, 31129318), (2, 15564659), (11, 2829938), (22, 1414969), (79, 394042), (158, 197021), (869, 35822), (1738, 17911)]