19910364

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{72139}}^1$

素因数の和:72169

約数の個数: 24

約数和(自身を含む): 48478080

約数和(自身を除く): 28567716

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 276, 72139, 144278, 216417, 288556, 432834, 865668, 1659197, 3318394, 4977591, 6636788, 9955182, 19910364]

約数ペア:

[(1, 19910364), (2, 9955182), (3, 6636788), (4, 4977591), (6, 3318394), (12, 1659197), (23, 865668), (46, 432834), (69, 288556), (92, 216417), (138, 144278), (276, 72139)]