19916552

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{439}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 38491200

約数和(自身を除く): 18574648

約数列:

[1, 2, 4, 8, 53, 106, 107, 212, 214, 424, 428, 439, 856, 878, 1756, 3512, 5671, 11342, 22684, 23267, 45368, 46534, 46973, 93068, 93946, 186136, 187892, 375784, 2489569, 4979138, 9958276, 19916552]

約数ペア:

[(1, 19916552), (2, 9958276), (4, 4979138), (8, 2489569), (53, 375784), (106, 187892), (107, 186136), (212, 93946), (214, 93068), (424, 46973), (428, 46534), (439, 45368), (856, 23267), (878, 22684), (1756, 11342), (3512, 5671)]