19800514

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1\times {\mathrm{347}}^1$

素因数の和:729

約数の個数: 16

約数和(自身を含む): 30184128

約数和(自身を除く): 10383614

約数列:

[1, 2, 103, 206, 277, 347, 554, 694, 28531, 35741, 57062, 71482, 96119, 192238, 9900257, 19800514]

約数ペア:

[(1, 19800514), (2, 9900257), (103, 192238), (206, 96119), (277, 71482), (347, 57062), (554, 35741), (694, 28531)]