16520889

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{601}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 29647296

約数和(自身を除く): 13126407

約数列:

[1, 3, 7, 11, 17, 21, 33, 49, 51, 77, 119, 147, 187, 231, 357, 539, 561, 601, 833, 1309, 1617, 1803, 2499, 3927, 4207, 6611, 9163, 10217, 12621, 19833, 27489, 29449, 30651, 46277, 71519, 88347, 112387, 138831, 214557, 323939, 337161, 500633, 786709, 971817, 1501899, 2360127, 5506963, 16520889]

約数ペア:

[(1, 16520889), (3, 5506963), (7, 2360127), (11, 1501899), (17, 971817), (21, 786709), (33, 500633), (49, 337161), (51, 323939), (77, 214557), (119, 138831), (147, 112387), (187, 88347), (231, 71519), (357, 46277), (539, 30651), (561, 29449), (601, 27489), (833, 19833), (1309, 12621), (1617, 10217), (1803, 9163), (2499, 6611), (3927, 4207)]