21919414

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43319}}^1$

素因数の和:43355

約数の個数: 16

約数和(自身を含む): 37428480

約数和(自身を除く): 15509066

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 43319, 86638, 476509, 953018, 996337, 1992674, 10959707, 21919414]

約数ペア:

[(1, 21919414), (2, 10959707), (11, 1992674), (22, 996337), (23, 953018), (46, 476509), (253, 86638), (506, 43319)]