19193878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{5557}}^1$

素因数の和:5727

約数の個数: 16

約数和(自身を含む): 31613904

約数和(自身を除く): 12420026

約数列:

[1, 2, 11, 22, 157, 314, 1727, 3454, 5557, 11114, 61127, 122254, 872449, 1744898, 9596939, 19193878]

約数ペア:

[(1, 19193878), (2, 9596939), (11, 1744898), (22, 872449), (157, 122254), (314, 61127), (1727, 11114), (3454, 5557)]