21359554

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1\times {\mathrm{661}}^1$

素因数の和:921

約数の個数: 16

約数和(自身を含む): 32602176

約数和(自身を除く): 11242622

約数列:

[1, 2, 107, 151, 214, 302, 661, 1322, 16157, 32314, 70727, 99811, 141454, 199622, 10679777, 21359554]

約数ペア:

[(1, 21359554), (2, 10679777), (107, 199622), (151, 141454), (214, 99811), (302, 70727), (661, 32314), (1322, 16157)]