128412081

素因数分解:

$3^3\times 7^1\times {\mathrm{659}}^1\times {\mathrm{1031}}^1$

素因数の和:1706

約数の個数: 32

約数和(自身を含む): 217958400

約数和(自身を除く): 89546319

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 659, 1031, 1977, 3093, 4613, 5931, 7217, 9279, 13839, 17793, 21651, 27837, 41517, 64953, 124551, 194859, 679429, 2038287, 4756003, 6114861, 14268009, 18344583, 42804027, 128412081]

約数ペア:

[(1, 128412081), (3, 42804027), (7, 18344583), (9, 14268009), (21, 6114861), (27, 4756003), (63, 2038287), (189, 679429), (659, 194859), (1031, 124551), (1977, 64953), (3093, 41517), (4613, 27837), (5931, 21651), (7217, 17793), (9279, 13839)]