21998526

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:377

約数の個数: 48

約数和(自身を含む): 48920592

約数和(自身を除く): 26922066

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 121, 157, 193, 242, 314, 363, 386, 471, 579, 726, 942, 1158, 1727, 2123, 3454, 4246, 5181, 6369, 10362, 12738, 18997, 23353, 30301, 37994, 46706, 56991, 60602, 70059, 90903, 113982, 140118, 181806, 333311, 666622, 999933, 1999866, 3666421, 7332842, 10999263, 21998526]

約数ペア:

[(1, 21998526), (2, 10999263), (3, 7332842), (6, 3666421), (11, 1999866), (22, 999933), (33, 666622), (66, 333311), (121, 181806), (157, 140118), (193, 113982), (242, 90903), (314, 70059), (363, 60602), (386, 56991), (471, 46706), (579, 37994), (726, 30301), (942, 23353), (1158, 18997), (1727, 12738), (2123, 10362), (3454, 6369), (4246, 5181)]