19955307

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1\times {\mathrm{461}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 27320832

約数和(自身を除く): 7365525

約数列:

[1, 3, 47, 141, 307, 461, 921, 1383, 14429, 21667, 43287, 65001, 141527, 424581, 6651769, 19955307]

約数ペア:

[(1, 19955307), (3, 6651769), (47, 424581), (141, 141527), (307, 65001), (461, 43287), (921, 21667), (1383, 14429)]