20819306

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1\times {\mathrm{347}}^1$

素因数の和:709

約数の個数: 16

約数和(自身を含む): 31695840

約数和(自身を除く): 10876534

約数列:

[1, 2, 131, 229, 262, 347, 458, 694, 29999, 45457, 59998, 79463, 90914, 158926, 10409653, 20819306]

約数ペア:

[(1, 20819306), (2, 10409653), (131, 158926), (229, 90914), (262, 79463), (347, 59998), (458, 45457), (694, 29999)]