19968876

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{8039}}^1$

素因数の和:8075

約数の個数: 48

約数和(自身を含む): 54028800

約数和(自身を除く): 34059924

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 92, 108, 138, 207, 276, 414, 621, 828, 1242, 2484, 8039, 16078, 24117, 32156, 48234, 72351, 96468, 144702, 184897, 217053, 289404, 369794, 434106, 554691, 739588, 868212, 1109382, 1664073, 2218764, 3328146, 4992219, 6656292, 9984438, 19968876]

約数ペア:

[(1, 19968876), (2, 9984438), (3, 6656292), (4, 4992219), (6, 3328146), (9, 2218764), (12, 1664073), (18, 1109382), (23, 868212), (27, 739588), (36, 554691), (46, 434106), (54, 369794), (69, 289404), (92, 217053), (108, 184897), (138, 144702), (207, 96468), (276, 72351), (414, 48234), (621, 32156), (828, 24117), (1242, 16078), (2484, 8039)]