20957542

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1\times {\mathrm{419}}^1$

素因数の和:791

約数の個数: 16

約数和(自身を含む): 31978800

約数和(自身を除く): 11021258

約数列:

[1, 2, 89, 178, 281, 419, 562, 838, 25009, 37291, 50018, 74582, 117739, 235478, 10478771, 20957542]

約数ペア:

[(1, 20957542), (2, 10478771), (89, 235478), (178, 117739), (281, 74582), (419, 50018), (562, 37291), (838, 25009)]