20957704

素因数分解:

$2^3\times {\mathrm{293}}^1\times {\mathrm{8941}}^1$

素因数の和:9240

約数の個数: 16

約数和(自身を含む): 39434220

約数和(自身を除く): 18476516

約数列:

[1, 2, 4, 8, 293, 586, 1172, 2344, 8941, 17882, 35764, 71528, 2619713, 5239426, 10478852, 20957704]

約数ペア:

[(1, 20957704), (2, 10478852), (4, 5239426), (8, 2619713), (293, 71528), (586, 35764), (1172, 17882), (2344, 8941)]