19907919

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{53951}}^1$

素因数の和:53998

約数の個数: 12

約数和(自身を含む): 29457792

約数和(自身を除く): 9549873

約数列:

[1, 3, 9, 41, 123, 369, 53951, 161853, 485559, 2211991, 6635973, 19907919]

約数ペア:

[(1, 19907919), (3, 6635973), (9, 2211991), (41, 485559), (123, 161853), (369, 53951)]