16802181

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:207

約数の個数: 48

約数和(自身を含む): 28302400

約数和(自身を除く): 11500219

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 121, 139, 297, 333, 363, 407, 417, 999, 1089, 1221, 1251, 1529, 3267, 3663, 3753, 4477, 4587, 5143, 10989, 13431, 13761, 15429, 16819, 40293, 41283, 46287, 50457, 56573, 120879, 138861, 151371, 169719, 454113, 509157, 622303, 1527471, 1866909, 5600727, 16802181]

約数ペア:

[(1, 16802181), (3, 5600727), (9, 1866909), (11, 1527471), (27, 622303), (33, 509157), (37, 454113), (99, 169719), (111, 151371), (121, 138861), (139, 120879), (297, 56573), (333, 50457), (363, 46287), (407, 41283), (417, 40293), (999, 16819), (1089, 15429), (1221, 13761), (1251, 13431), (1529, 10989), (3267, 5143), (3663, 4587), (3753, 4477)]