30786441

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 51499008

約数和(自身を除く): 20712567

約数列:

[1, 3, 7, 19, 21, 31, 57, 93, 131, 133, 217, 361, 393, 399, 589, 651, 917, 1083, 1767, 2489, 2527, 2751, 4061, 4123, 7467, 7581, 11191, 12183, 12369, 17423, 28427, 33573, 47291, 52269, 77159, 78337, 85281, 141873, 231477, 235011, 331037, 540113, 993111, 1466021, 1620339, 4398063, 10262147, 30786441]

約数ペア:

[(1, 30786441), (3, 10262147), (7, 4398063), (19, 1620339), (21, 1466021), (31, 993111), (57, 540113), (93, 331037), (131, 235011), (133, 231477), (217, 141873), (361, 85281), (393, 78337), (399, 77159), (589, 52269), (651, 47291), (917, 33573), (1083, 28427), (1767, 17423), (2489, 12369), (2527, 12183), (2751, 11191), (4061, 7581), (4123, 7467)]