178698261

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{2111}}^1$

素因数の和:2289

約数の個数: 32

約数和(自身を含む): 283852800

約数和(自身を除く): 105154539

約数列:

[1, 3, 7, 21, 29, 87, 139, 203, 417, 609, 973, 2111, 2919, 4031, 6333, 12093, 14777, 28217, 44331, 61219, 84651, 183657, 293429, 428533, 880287, 1285599, 2054003, 6162009, 8509441, 25528323, 59566087, 178698261]

約数ペア:

[(1, 178698261), (3, 59566087), (7, 25528323), (21, 8509441), (29, 6162009), (87, 2054003), (139, 1285599), (203, 880287), (417, 428533), (609, 293429), (973, 183657), (2111, 84651), (2919, 61219), (4031, 44331), (6333, 28217), (12093, 14777)]