16956471

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 26897920

約数和(自身を除く): 9941449

約数列:

[1, 3, 7, 21, 37, 111, 139, 157, 259, 417, 471, 777, 973, 1099, 2919, 3297, 5143, 5809, 15429, 17427, 21823, 36001, 40663, 65469, 108003, 121989, 152761, 458283, 807451, 2422353, 5652157, 16956471]

約数ペア:

[(1, 16956471), (3, 5652157), (7, 2422353), (21, 807451), (37, 458283), (111, 152761), (139, 121989), (157, 108003), (259, 65469), (417, 40663), (471, 36001), (777, 21823), (973, 17427), (1099, 15429), (2919, 5809), (3297, 5143)]