21045784

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{25541}}^1$

素因数の和:25650

約数の個数: 16

約数和(自身を含む): 39845520

約数和(自身を除く): 18799736

約数列:

[1, 2, 4, 8, 103, 206, 412, 824, 25541, 51082, 102164, 204328, 2630723, 5261446, 10522892, 21045784]

約数ペア:

[(1, 21045784), (2, 10522892), (4, 5261446), (8, 2630723), (103, 204328), (206, 102164), (412, 51082), (824, 25541)]