217420806988

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1607}}^1\times {\mathrm{439273}}^1$

素因数の和:440902

約数の個数: 48

約数和(自身を含む): 474668941824

約数和(自身を除く): 257248134836

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 1607, 3214, 6428, 11249, 17677, 22498, 35354, 44996, 70708, 123739, 247478, 439273, 494956, 878546, 1757092, 3074911, 4832003, 6149822, 9664006, 12299644, 19328012, 33824021, 67648042, 135296084, 705911711, 1411823422, 2823646844, 4941381977, 7765028821, 9882763954, 15530057642, 19765527908, 31060115284, 54355201747, 108710403494, 217420806988]

約数ペア:

[(1, 217420806988), (2, 108710403494), (4, 54355201747), (7, 31060115284), (11, 19765527908), (14, 15530057642), (22, 9882763954), (28, 7765028821), (44, 4941381977), (77, 2823646844), (154, 1411823422), (308, 705911711), (1607, 135296084), (3214, 67648042), (6428, 33824021), (11249, 19328012), (17677, 12299644), (22498, 9664006), (35354, 6149822), (44996, 4832003), (70708, 3074911), (123739, 1757092), (247478, 878546), (439273, 494956)]