18972584036

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1\times {\mathrm{20249}}^1$

素因数の和:20676

約数の個数: 48

約数和(自身を含む): 38419920000

約数和(自身を除く): 19447335964

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 307, 436, 614, 763, 1228, 1526, 2149, 3052, 4298, 8596, 20249, 33463, 40498, 66926, 80996, 133852, 141743, 234241, 283486, 468482, 566972, 936964, 2207141, 4414282, 6216443, 8828564, 12432886, 15449987, 24865772, 30899974, 43515101, 61799948, 87030202, 174060404, 677592287, 1355184574, 2710369148, 4743146009, 9486292018, 18972584036]

約数ペア:

[(1, 18972584036), (2, 9486292018), (4, 4743146009), (7, 2710369148), (14, 1355184574), (28, 677592287), (109, 174060404), (218, 87030202), (307, 61799948), (436, 43515101), (614, 30899974), (763, 24865772), (1228, 15449987), (1526, 12432886), (2149, 8828564), (3052, 6216443), (4298, 4414282), (8596, 2207141), (20249, 936964), (33463, 566972), (40498, 468482), (66926, 283486), (80996, 234241), (133852, 141743)]