20199982

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{83471}}^1$

素因数の和:83495

約数の個数: 12

約数和(自身を含む): 33305328

約数和(自身を除く): 13105346

約数列:

[1, 2, 11, 22, 121, 242, 83471, 166942, 918181, 1836362, 10099991, 20199982]

約数ペア:

[(1, 20199982), (2, 10099991), (11, 1836362), (22, 918181), (121, 166942), (242, 83471)]