19903726

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{1049}}^1$

素因数の和:1283

約数の個数: 16

約数和(自身を含む): 30618000

約数和(自身を除く): 10714274

約数列:

[1, 2, 53, 106, 179, 358, 1049, 2098, 9487, 18974, 55597, 111194, 187771, 375542, 9951863, 19903726]

約数ペア:

[(1, 19903726), (2, 9951863), (53, 375542), (106, 187771), (179, 111194), (358, 55597), (1049, 18974), (2098, 9487)]